#include <bits/stdc++.h>
using namespace std;
void Solve();
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  Solve();
}
using namespace std;
const int P = 998244353, R = 3;
const int BRUTE_N2_LIMIT = 50;
int mpow(int x, int k, int p = P) {
  int ret = 1;
  while (k) {
    if (k & 1) ret = ret * (long long)x % p;
    x = x * (long long)x % p;
    k >>= 1;
  }
  return ret;
}
int norm(int x) { return x >= P ? x - P : x; }
void add(int &x, int y) {
  if ((x += y) >= P) x -= P;
}
void sub(int &x, int y) {
  if ((x -= y) < 0) x += P;
}
struct NumberTheory {
  mt19937 rng;
  NumberTheory()
      : rng(chrono::steady_clock::now().time_since_epoch().count()) {}
  void _exGcd(int a, int b, int &x, int &y) {
    if (!b) {
      x = 1;
      y = 0;
      return;
    }
    _exGcd(b, a % b, y, x);
    y -= a / b * x;
  }
  int inv(int a, int p = P) {
    int x, y;
    _exGcd(a, p, x, y);
    if (x < 0) x += p;
    return x;
  }
  template <class Integer>
  bool quadRes(Integer a, Integer b) {
    if (a <= 1) return true;
    while (a % 4 == 0) a /= 4;
    if (a % 2 == 0) return (b % 8 == 1 || b % 8 == 7) == quadRes(a / 2, b);
    return ((a - 1) % 4 == 0 || (b - 1) % 4 == 0) == quadRes(b % a, a);
  }
  int sqrt(int x, int p = P) {
    if (p == 2 || x <= 1) return x;
    int w, v, k = (p + 1) / 2;
    do {
      w = rng() % p;
    } while (quadRes(v = int((w * (long long)w - x + p) % p), p));
    pair<int, int> res(1, 0), a(w, 1);
    while (k) {
      if (k & 1)
        res = pair<int, int>((res.first * (long long)a.first +
                              res.second * (long long)a.second % p * v) %
                                 p,
                             (res.first * (long long)a.second +
                              res.second * (long long)a.first) %
                                 p);
      if (k >>= 1)
        a = pair<int, int>((a.first * (long long)a.first +
                            a.second * (long long)a.second % p * v) %
                               p,
                           (a.first * (long long)a.second << 1) % p);
    }
    return min(res.first, p - res.first);
  }
} nt;
template <class T, class Comp>
struct AdditionChain {
  int k;
  vector<T> prepare;
  T t, unit;
  Comp comp;
  AdditionChain(const T &t, const Comp &comp, int k, const T &unit = 1)
      : comp(comp), t(t), unit(unit), k(k), prepare(1U << k) {
    prepare[0] = unit;
    for (int i = 1; i < 1 << k; ++i) prepare[i] = comp(prepare[i - 1], t);
  }
  static AdditionChain fourRussians(const T &t, const Comp &comp, int lgn,
                                    const T &unit = 1) {
    lgn = max(lgn, 1);
    int k = 1, lglgn = 1;
    while (2 << lglgn <= lgn) ++lglgn;
    int w = lglgn / lgn;
    while (1 << k < w) ++k;
    return AdditionChain(t, comp, k, unit);
  }
  T pow(int n) const {
    if (n < 1 << k) return prepare[n];
    int r = n & ((1 << k) - 1);
    T step = pow(n >> k);
    for (int rep = 0; rep < k; ++rep) step = comp(step, step);
    return comp(step, prepare[r]);
  }
};
struct Simple {
  int n;
  vector<int> fac, ifac, inv;
  void build(int n) {
    this->n = n;
    fac.resize(n + 1);
    ifac.resize(n + 1);
    inv.resize(n + 1);
    fac[0] = 1;
    for (int x = 1; x <= n; ++x) fac[x] = fac[x - 1] * (long long)x % P;
    inv[1] = 1;
    for (int x = 2; x <= n; ++x)
      inv[x] = -(P / x) * (long long)inv[P % x] % P + P;
    ifac[0] = 1;
    for (int x = 1; x <= n; ++x) ifac[x] = ifac[x - 1] * (long long)inv[x] % P;
  }
  Simple() { build(1); }
  void check(int k) {
    int nn = n;
    if (k > nn) {
      while (k > nn) nn <<= 1;
      build(nn);
    }
  }
  int gfac(int k) {
    check(k);
    return fac[k];
  }
  int gifac(int k) {
    check(k);
    return ifac[k];
  }
  int ginv(int k) {
    check(k);
    return inv[k];
  }
  int binom(int n, int m) {
    if (m < 0 || m > n) return 0;
    return gfac(n) * (long long)gifac(m) % P * gifac(n - m) % P;
  }
} simp;
const int L2 = 11;
struct NTT {
  int L;
  int brev[1 << L2];
  vector<int> root;
  NTT() : L(-1) {
    for (int i = 1; i < (1 << L2); ++i)
      brev[i] = brev[i >> 1] >> 1 | ((i & 1) << (L2 - 1));
  }
  void prepRoot(int l) {
    L = l;
    root.resize(2 << L);
    for (int i = 0; i <= L; ++i) {
      int *w = root.data() + (1 << i);
      w[0] = 1;
      int omega = mpow(R, (P - 1) >> i);
      for (int j = 1; j < 1 << i; ++j) w[j] = w[j - 1] * (long long)omega % P;
    }
  }
  void fft(int *a, int lgn, int d = 1) {
    if (L < lgn) prepRoot(lgn);
    int n = 1 << lgn;
    for (int i = 0; i < n; ++i) {
      int rev = (brev[i >> L2] | (brev[i & ((1 << L2) - 1)] << L2)) >>
                ((L2 << 1) - lgn);
      if (i < rev) swap(a[i], a[rev]);
    }
    for (int i = 1; i < n; i <<= 1) {
      int *w = root.data() + (i << 1);
      for (int j = 0; j < n; j += i << 1) {
        for (int k = 0; k < i; ++k) {
          int aa = w[k] * (long long)a[i + j + k] % P;
          a[i + j + k] = norm(a[j + k] + P - aa);
          add(a[j + k], aa);
        }
      }
    }
    if (d == -1) {
      reverse(a + 1, a + n);
      int nv = mpow(n, P - 2);
      for (int i = 0; i < n; ++i) a[i] = a[i] * (long long)nv % P;
    }
  }
} ntt;
struct Poly {
  vector<int> a;
  Poly(int v = 0) : a(1) {
    if ((v %= P) < 0) v += P;
    a[0] = v;
  }
  Poly(const vector<int> &a) : a(a) {}
  Poly(initializer_list<int> init) : a(init) {}
  int operator[](int k) const { return k < a.size() ? a[k] : 0; }
  int &operator[](int k) {
    if (k >= a.size()) a.resize(k + 1);
    return a[k];
  }
  int deg() const { return a.size() - 1; }
  void redeg(int d) { a.resize(d + 1); }
  Poly monic() const;
  Poly sunic() const;
  Poly slice(int d) const {
    if (d < a.size()) return vector<int>(a.begin(), a.begin() + d + 1);
    vector<int> res(a);
    res.resize(d + 1);
    return res;
  }
  int *base() { return a.data(); }
  const int *base() const { return a.data(); }
  Poly println(FILE *fp) const {
    fprintf(fp, "%d", a[0]);
    for (int i = 1; i < a.size(); ++i) fprintf(fp, " %d", a[i]);
    fputc('\n', fp);
    return *this;
  }
  Poly operator+(const Poly &rhs) const {
    vector<int> res(max(a.size(), rhs.a.size()));
    for (int i = 0; i < res.size(); ++i)
      if ((res[i] = operator[](i) + rhs[i]) >= P) res[i] -= P;
    return res;
  }
  Poly operator-() const {
    Poly ret(a);
    for (int i = 0; i < a.size(); ++i)
      if (ret[i]) ret[i] = P - ret[i];
    return ret;
  }
  Poly operator-(const Poly &rhs) const { return operator+(-rhs); }
  Poly operator*(const Poly &rhs) const;
  Poly operator/(const Poly &rhs) const;
  Poly operator%(const Poly &rhs) const;
  Poly der() const;
  Poly integ() const;
  Poly inv() const;
  Poly sqrt() const;
  Poly ln() const;
  Poly exp() const;
  pair<Poly, Poly> sqrti() const;
  pair<Poly, Poly> expi() const;
  Poly quo(const Poly &rhs) const;
  pair<Poly, Poly> iquo(const Poly &rhs) const;
  pair<Poly, Poly> div(const Poly &rhs) const;
  Poly taylor(int k) const;
  Poly pow(int k) const;
  Poly exp(int k) const;
};
Poly zeroes(int deg) { return vector<int>(deg + 1); }
struct Newton {
  void inv(const Poly &f, const Poly &nttf, Poly &g, const Poly &nttg, int t) {
    int n = 1 << t;
    Poly prod = nttf;
    for (int i = 0; i < (n << 1); ++i)
      prod[i] = prod[i] * (long long)nttg[i] % P;
    ntt.fft(prod.base(), t + 1, -1);
    for (int i = 0; i < n; ++i) prod[i] = 0;
    ntt.fft(prod.base(), t + 1, 1);
    for (int i = 0; i < (n << 1); ++i)
      prod[i] = prod[i] * (long long)nttg[i] % P;
    ntt.fft(prod.base(), t + 1, -1);
    for (int i = 0; i < n; ++i) prod[i] = 0;
    g = g - prod;
  }
  void inv(const Poly &f, const Poly &nttf, Poly &g, int t) {
    Poly nttg = g;
    nttg.redeg((2 << t) - 1);
    ntt.fft(nttg.base(), t + 1, 1);
    inv(f, nttf, g, nttg, t);
  }
  void inv(const Poly &f, Poly &g, int t) {
    Poly nttg = g;
    nttg.redeg((2 << t) - 1);
    ntt.fft(nttg.base(), t + 1, 1);
    Poly nttf = f;
    nttf.redeg((2 << t) - 1);
    ntt.fft(nttf.base(), t + 1, 1);
    inv(f, nttf, g, nttg, t);
  }
  void sqrt(const Poly &f, Poly &g, Poly &nttg, Poly &h, int t) {
    for (int i = 0; i < (1 << t); ++i) nttg[i] = mpow(nttg[i], 2);
    ntt.fft(nttg.base(), t, -1);
    nttg = nttg - f;
    for (int i = 0; i < (1 << t); ++i)
      if ((nttg[i + (1 << t)] += nttg[i]) >= P) nttg[i + (1 << t)] -= P;
    memset(nttg.base(), 0, sizeof(int) << t);
    ntt.fft(nttg.base(), t + 1, 1);
    Poly tmp = h;
    tmp.redeg((2 << t) - 1);
    ntt.fft(tmp.base(), t + 1, 1);
    for (int i = 0; i < (2 << t); ++i) tmp[i] = tmp[i] * (long long)nttg[i] % P;
    ntt.fft(tmp.base(), t + 1, -1);
    memset(tmp.base(), 0, sizeof(int) << t);
    g = g - tmp * nt.inv(2);
  }
  void exp(const Poly &f, Poly &g, Poly &nttg, Poly &h, int t) {
    Poly ntth(h);
    ntt.fft(ntth.base(), t, 1);
    Poly dg = g.der().slice((1 << t) - 1);
    ntt.fft(dg.base(), t, 1);
    Poly tmp = zeroes((1 << t) - 1);
    for (int i = 0; i < (1 << t); ++i) {
      tmp[i] = nttg[i << 1] * (long long)ntth[i] % P;
      dg[i] = dg[i] * (long long)ntth[i] % P;
    }
    ntt.fft(tmp.base(), t, -1);
    ntt.fft(dg.base(), t, -1);
    if (--tmp[0] < 0) tmp[0] = P - 1;
    dg.redeg((2 << t) - 1);
    Poly df0 = f.der().slice((1 << t) - 1);
    df0[(1 << t) - 1] = 0;
    for (int i = 0; i < (1 << t); ++i) {
      if ((dg[i | 1 << t] = dg[i] - df0[i]) < 0) dg[i | 1 << t] += P;
    }
    memcpy(dg.base(), df0.base(), sizeof(int) * ((1 << t) - 1));
    tmp.redeg((2 << t) - 1);
    ntt.fft(tmp.base(), t + 1, 1);
    df0.redeg((2 << t) - 1);
    ntt.fft(df0.base(), t + 1, 1);
    for (int i = 0; i < (2 << t); ++i) df0[i] = df0[i] * (long long)tmp[i] % P;
    ntt.fft(df0.base(), t + 1, -1);
    memcpy(df0.base() + (1 << t), df0.base(), sizeof(int) << t);
    memset(df0.base(), 0, sizeof(int) << t);
    dg = (dg - df0).integ().slice((2 << t) - 1) - f;
    ntt.fft(dg.base(), t + 1, 1);
    for (int i = 0; i < (2 << t); ++i) tmp[i] = dg[i] * (long long)nttg[i] % P;
    ntt.fft(tmp.base(), t + 1, -1);
    g.redeg((2 << t) - 1);
    for (int i = 1 << t; i < (2 << t); ++i)
      if (tmp[i]) g[i] = P - tmp[i];
  }
} nit;
struct SemiRelaxedConvolution {
  template <class Function>
  void run(const vector<int> &a, vector<int> &b, const Function &relax) {
    int n = a.size() - 1;
    function<void(int, int)> divideConquer = [&](int l, int r) {
      if (r - l <= BRUTE_N2_LIMIT) {
        for (int i = l; i <= r; ++i) {
          for (int j = l; j < i; ++j)
            b[i] = (b[i] + b[j] * (long long)a[i - j]) % P;
          relax(i);
        }
        return;
      }
      int lg = 31 - __builtin_clz(r - l) + 1;
      int d = (r - l) / lg + 1;
      int lgd = 0;
      while ((1 << lgd) < d) ++lgd;
      ++lgd;
      vector<int> top((lg << (lgd + 1)));
      for (int i = 0; i < lg; ++i) {
        copy(a.begin() + i * d, a.begin() + min((i + 2) * d, n + 1),
             top.begin() + (i << lgd));
        ntt.fft(top.data() + (i << lgd), lgd, 1);
      }
      for (int i = 0; i < lg; ++i) {
        if (i) ntt.fft(top.data() + ((lg + i) << lgd), lgd, -1);
        for (int j = 0; j < min(d, r - l - i * d + 1); ++j)
          b[l + i * d + j] =
              norm(b[l + i * d + j] + top[((lg + i) << lgd) + d + j]);
        divideConquer(l + i * d, min(l + (i + 1) * d - 1, r));
        if (i + 1 < lg) {
          copy(b.begin() + l + i * d, b.begin() + min(l + (i + 1) * d, n + 1),
               top.begin() + ((lg + i) << lgd));
          fill(top.data() + ((lg + i) << lgd) + d,
               top.data() + ((lg + i + 1) << lgd), 0);
          ntt.fft(top.data() + ((lg + i) << lgd), lgd, 1);
        }
        for (int j = i + 1; j < lg; ++j) {
          for (int k = 0; k < (1 << lgd); ++k)
            top[((lg + j) << lgd) + k] =
                (top[((lg + j) << lgd) + k] +
                 top[((j - i - 1) << lgd) + k] *
                     (long long)top[((lg + i) << lgd) + k]) %
                P;
        }
      }
    };
    divideConquer(0, n);
  }
} src;
struct Transposition {
  vector<int> _mul(int l, vector<int> res, const Poly &b) {
    vector<int> tmp(1 << l);
    memcpy(tmp.data(), b.a.data(), sizeof(int) * (b.deg() + 1));
    reverse(tmp.begin() + 1, tmp.end());
    ntt.fft(tmp.data(), l, 1);
    for (int i = 0; i < (1 << l); ++i) res[i] = res[i] * (long long)tmp[i] % P;
    ntt.fft(res.data(), l, -1);
    return res;
  }
  Poly bfMul(const Poly &a, const Poly &b) {
    int n = a.deg(), m = b.deg();
    Poly ret = zeroes(n - m);
    for (int i = 0; i <= n - m; ++i)
      for (int j = 0; j <= m; ++j)
        ret[i] = (ret[i] + a[i + j] * (long long)b[j]) % P;
    return ret;
  }
  Poly mul(const Poly &a, const Poly &b) {
    if (a.deg() < b.deg()) return 0;
    if (a.deg() <= BRUTE_N2_LIMIT) return bfMul(a, b);
    int l = 0;
    while ((1 << l) <= a.deg()) ++l;
    vector<int> res(1 << l);
    memcpy(res.data(), a.a.data(), sizeof(int) * (a.deg() + 1));
    ntt.fft(res.data(), l, 1);
    res = _mul(l, res, b);
    res.resize(a.deg() - b.deg() + 1);
    return res;
  }
  pair<Poly, Poly> mul2(const Poly &a, const Poly &b1, const Poly &b2) {
    if (a.deg() <= BRUTE_N2_LIMIT) return make_pair(bfMul(a, b1), bfMul(a, b2));
    int l = 0;
    while ((1 << l) <= a.deg()) ++l;
    vector<int> fa(1 << l);
    memcpy(fa.data(), a.a.data(), sizeof(int) * (a.deg() + 1));
    ntt.fft(fa.data(), l, 1);
    vector<int> res1 = _mul(l, fa, b1), res2 = _mul(l, fa, b2);
    res1.resize(a.deg() - b1.deg() + 1);
    res2.resize(a.deg() - b2.deg() + 1);
    return make_pair(res1, res2);
  }
  vector<int> ls, rs, pos;
  vector<Poly> p, q;
  void _build(int n) {
    ls.assign(n * 2 - 1, 0);
    rs.assign(n * 2 - 1, 0);
    p.assign(n * 2 - 1, 0);
    q.assign(n * 2 - 1, 0);
    pos.resize(n);
    int cnt = 0;
    function<int(int, int)> dfs = [&](int l, int r) {
      if (l == r) {
        pos[l] = cnt;
        return cnt++;
      }
      int ret = cnt++;
      int mid = (l + r) >> 1;
      ls[ret] = dfs(l, mid);
      rs[ret] = dfs(mid + 1, r);
      return ret;
    };
    dfs(0, n - 1);
  }
  vector<int> _eval(vector<int> f, const vector<int> &x) {
    int n = f.size();
    _build(n);
    for (int i = 0; i < n; ++i) q[pos[i]] = {1, norm(P - x[i])};
    for (int i = n * 2 - 2; i >= 0; --i)
      if (ls[i]) q[i] = q[ls[i]] * q[rs[i]];
    f.resize(n * 2);
    p[0] = mul(f, q[0].inv());
    for (int i = 0; i < n * 2 - 1; ++i)
      if (ls[i]) tie(p[ls[i]], p[rs[i]]) = mul2(p[i], q[rs[i]], q[ls[i]]);
    vector<int> ret(n);
    for (int i = 0; i < n; ++i) ret[i] = p[pos[i]][0];
    return ret;
  }
  vector<int> eval(const Poly &f, const vector<int> &x) {
    int n = f.deg() + 1, m = x.size();
    vector<int> tmpf = f.a, tmpx = x;
    tmpf.resize(max(n, m));
    tmpx.resize(max(n, m));
    vector<int> ret = _eval(tmpf, tmpx);
    ret.resize(m);
    return ret;
  }
  Poly inter(const vector<int> &x, const vector<int> &y) {
    int n = x.size();
    _build(n);
    for (int i = 0; i < n; ++i) q[pos[i]] = {1, norm(P - x[i])};
    for (int i = n * 2 - 2; i >= 0; --i)
      if (ls[i]) q[i] = q[ls[i]] * q[rs[i]];
    Poly tmp = q[0];
    reverse(tmp.a.begin(), tmp.a.end());
    vector<int> f = tmp.der().a;
    f.resize(n * 2);
    p[0] = mul(f, q[0].inv());
    for (int i = 0; i < n * 2 - 1; ++i)
      if (ls[i]) tie(p[ls[i]], p[rs[i]]) = mul2(p[i], q[rs[i]], q[ls[i]]);
    for (int i = 0; i < n; ++i)
      p[pos[i]] = nt.inv(p[pos[i]][0]) * (long long)y[i] % P;
    for (int i = 0; i < n * 2 - 1; ++i) reverse(q[i].a.begin(), q[i].a.end());
    for (int i = n * 2 - 2; i >= 0; --i)
      if (ls[i]) p[i] = p[ls[i]] * q[rs[i]] + p[rs[i]] * q[ls[i]];
    return p[0];
  }
} tp;
Poly operator"" _z(unsigned long long a) { return {0, (int)a}; }
Poly operator+(int v, const Poly &rhs) { return Poly(v) + rhs; }
Poly Poly::operator*(const Poly &rhs) const {
  int n = deg(), m = rhs.deg();
  if (n <= 10 || m <= 10 || n + m <= BRUTE_N2_LIMIT) {
    Poly ret = zeroes(n + m);
    for (int i = 0; i <= n; ++i)
      for (int j = 0; j <= m; ++j)
        ret[i + j] = (ret[i + j] + a[i] * (long long)rhs[j]) % P;
    return ret;
  }
  n += m;
  int l = 0;
  while ((1 << l) <= n) ++l;
  vector<int> res(1 << l), tmp(1 << l);
  memcpy(res.data(), base(), a.size() * sizeof(int));
  ntt.fft(res.data(), l, 1);
  memcpy(tmp.data(), rhs.base(), rhs.a.size() * sizeof(int));
  ntt.fft(tmp.data(), l, 1);
  for (int i = 0; i < (1 << l); ++i) res[i] = res[i] * (long long)tmp[i] % P;
  ntt.fft(res.data(), l, -1);
  res.resize(n + 1);
  return res;
}
Poly Poly::inv() const {
  Poly g = nt.inv(a[0]);
  for (int t = 0; (1 << t) <= deg(); ++t) nit.inv(slice((2 << t) - 1), g, t);
  g.redeg(deg());
  return g;
}
Poly Poly::taylor(int k) const {
  int n = deg();
  Poly t = zeroes(n);
  simp.check(n);
  for (int i = 0; i <= n; ++i) t[n - i] = a[i] * (long long)simp.fac[i] % P;
  int pw = 1;
  Poly help = vector<int>(simp.ifac.begin(), simp.ifac.begin() + n + 1);
  for (int i = 0; i <= n; ++i) {
    help[i] = help[i] * (long long)pw % P;
    pw = pw * (long long)k % P;
  }
  t = t * help;
  for (int i = 0; i <= n; ++i) help[i] = t[n - i] * (long long)simp.ifac[i] % P;
  return help;
}
Poly Poly::pow(int k) const {
  if (k == 0) return 1;
  if (k == 1) return *this;
  int n = deg() * k;
  int lgn = 0;
  while ((1 << lgn) <= n) ++lgn;
  vector<int> val = a;
  val.resize(1 << lgn);
  ntt.fft(val.data(), lgn, 1);
  for (int i = 0; i < (1 << lgn); ++i) val[i] = mpow(val[i], k);
  ntt.fft(val.data(), lgn, -1);
  return val;
}
Poly Poly::der() const {
  if (deg() == 0) return 0;
  vector<int> res(deg());
  for (int i = 0; i < deg(); ++i) res[i] = a[i + 1] * (long long)(i + 1) % P;
  return res;
}
Poly Poly::integ() const {
  vector<int> res(deg() + 2);
  simp.check(deg() + 1);
  for (int i = 0; i <= deg(); ++i)
    res[i + 1] = a[i] * (long long)simp.inv[i + 1] % P;
  return res;
}
Poly Poly::quo(const Poly &rhs) const {
  if (rhs.deg() == 0) return a[0] * (long long)nt.inv(rhs[0]) % P;
  Poly g = nt.inv(rhs[0]);
  int t = 0, n;
  for (n = 1; (n << 1) <= rhs.deg(); ++t, n <<= 1)
    nit.inv(rhs.slice((n << 1) - 1), g, t);
  Poly nttg = g;
  nttg.redeg((n << 1) - 1);
  ntt.fft(nttg.base(), t + 1, 1);
  Poly eps1 = rhs.slice((n << 1) - 1);
  ntt.fft(eps1.base(), t + 1, 1);
  for (int i = 0; i < (n << 1); ++i) eps1[i] = eps1[i] * (long long)nttg[i] % P;
  ntt.fft(eps1.base(), t + 1, -1);
  memcpy(eps1.base(), eps1.base() + n, sizeof(int) << t);
  memset(eps1.base() + n, 0, sizeof(int) << t);
  ntt.fft(eps1.base(), t + 1, 1);
  Poly h0 = slice(n - 1);
  h0.redeg((n << 1) - 1);
  ntt.fft(h0.base(), t + 1);
  Poly h0g0 = zeroes((n << 1) - 1);
  for (int i = 0; i < (n << 1); ++i) h0g0[i] = h0[i] * (long long)nttg[i] % P;
  ntt.fft(h0g0.base(), t + 1, -1);
  Poly h0eps1 = zeroes((n << 1) - 1);
  for (int i = 0; i < (n << 1); ++i) h0eps1[i] = h0[i] * (long long)eps1[i] % P;
  ntt.fft(h0eps1.base(), t + 1, -1);
  for (int i = 0; i < n; ++i) {
    h0eps1[i] = operator[](i + n) - h0eps1[i];
    if (h0eps1[i] < 0) h0eps1[i] += P;
  }
  memset(h0eps1.base() + n, 0, sizeof(int) << t);
  ntt.fft(h0eps1.base(), t + 1);
  for (int i = 0; i < (n << 1); ++i)
    h0eps1[i] = h0eps1[i] * (long long)nttg[i] % P;
  ntt.fft(h0eps1.base(), t + 1, -1);
  memcpy(h0eps1.base() + n, h0eps1.base(), sizeof(int) << t);
  memset(h0eps1.base(), 0, sizeof(int) << t);
  return (h0g0 + h0eps1).slice(rhs.deg());
}
Poly Poly::ln() const {
  if (deg() == 0) return 0;
  return der().quo(slice(deg() - 1)).integ();
}
pair<Poly, Poly> Poly::sqrti() const {
  Poly g = nt.sqrt(a[0]), h = nt.inv(g[0]), nttg = g;
  for (int t = 0; (1 << t) <= deg(); ++t) {
    nit.sqrt(slice((2 << t) - 1), g, nttg, h, t);
    nttg = g;
    ntt.fft(nttg.base(), t + 1, 1);
    nit.inv(g, nttg, h, t);
  }
  return make_pair(g.slice(deg()), h.slice(deg()));
}
Poly Poly::sqrt() const {
  Poly g = nt.sqrt(a[0]), h = nt.inv(g[0]), nttg = g;
  for (int t = 0; (1 << t) <= deg(); ++t) {
    nit.sqrt(slice((2 << t) - 1), g, nttg, h, t);
    if ((2 << t) <= deg()) {
      nttg = g;
      ntt.fft(nttg.base(), t + 1, 1);
      nit.inv(g, nttg, h, t);
    }
  }
  return g.slice(deg());
}
Poly Poly::exp() const {
  vector<int> der(a), ret(a.size());
  for (int i = 0; i < a.size(); ++i) der[i] = der[i] * (long long)i % P;
  src.run(der, ret, [&](int i) {
    if (i == 0)
      ret[0] = 1;
    else
      ret[i] = ret[i] * (long long)simp.ginv(i) % P;
  });
  return ret;
}
pair<Poly, Poly> Poly::expi() const {
  Poly g = 1, h = 1, nttg = {1, 1};
  for (int t = 0; (1 << t) <= deg(); ++t) {
    nit.exp(slice((2 << t) - 1), g, nttg, h, t);
    nttg = g;
    nttg.redeg((4 << t) - 1);
    ntt.fft(nttg.base(), t + 2);
    Poly f2n = zeroes((2 << t) - 1);
    for (int i = 0; i < (2 << t); ++i) f2n[i] = nttg[i << 1];
    nit.inv(g, f2n, h, t);
  }
  return make_pair(g.slice(deg()), h.slice(deg()));
}
Poly Poly::exp(int k) const {
  int lead, lz = 0;
  while (lz < deg() && !a[lz]) ++lz;
  if (lz == deg() && !a[lz]) return *this;
  lead = a[lz];
  if (lz * (long long)k > deg()) return zeroes(deg());
  Poly part =
      Poly(vector<int>(a.begin() + lz, a.begin() + deg() - lz * (k - 1) + 1)) *
      nt.inv(lead);
  part = (part.ln() * k).exp() * mpow(lead, k);
  vector<int> ret(deg() + 1);
  memcpy(ret.data() + lz * k, part.base(), sizeof(int) * (deg() - lz * k + 1));
  return ret;
}
Poly Poly::operator/(const Poly &rhs) const {
  int n = deg(), m = rhs.deg();
  if (n < m) return 0;
  Poly ta(vector<int>(a.rbegin(), a.rend())),
      tb(vector<int>(rhs.a.rbegin(), rhs.a.rend()));
  ta.redeg(n - m);
  tb.redeg(n - m);
  Poly q = ta.quo(tb);
  reverse(q.a.begin(), q.a.end());
  return q;
}
pair<Poly, Poly> Poly::div(const Poly &rhs) const {
  if (deg() < rhs.deg()) return make_pair(0, *this);
  int n = deg(), m = rhs.deg();
  Poly q = operator/(rhs), r;
  int lgn = 0;
  while ((1 << lgn) < rhs.deg()) ++lgn;
  int t = (1 << lgn) - 1;
  r = zeroes(t);
  Poly tmp = zeroes(t);
  for (int i = 0; i <= m; ++i)
    if ((r[i & t] += rhs[i]) >= P) r[i & t] -= P;
  for (int i = 0; i <= n - m; ++i)
    if ((tmp[i & t] += q[i]) >= P) tmp[i & t] -= P;
  ntt.fft(r.base(), lgn, 1);
  ntt.fft(tmp.base(), lgn, 1);
  for (int i = 0; i <= t; ++i) tmp[i] = tmp[i] * (long long)r[i] % P;
  ntt.fft(tmp.base(), lgn, -1);
  memset(r.base(), 0, sizeof(int) << lgn);
  for (int i = 0; i <= n; ++i)
    if ((r[i & t] += a[i]) >= P) r[i & t] -= P;
  for (int i = 0; i < m; ++i)
    if ((r[i] -= tmp[i]) < 0) r[i] += P;
  return make_pair(q, r.slice(m - 1));
}
Poly Poly::operator%(const Poly &rhs) const {
  if (deg() < rhs.deg()) return *this;
  return div(rhs).second;
}
template <class T>
istream &operator>>(istream &is, vector<T> &v) {
  for (T &x : v) is >> x;
  return is;
}
template <class T>
ostream &operator<<(ostream &os, const vector<T> &v) {
  if (!v.empty()) {
    os << v.front();
    for (int i = 1; i < v.size(); ++i) os << ' ' << v[i];
  }
  return os;
}
void Solve() {
  int n, m;
  cin >> n >> m;
  if (n % 2 == 0) {
    Poly p = zeroes(n / 2);
    p[0] = 1;
    for (int i = 1; i <= n / 2; ++i)
      p[i] = p[i - 1] * (unsigned long long)(m + i) % P * (m - i + 1) % P;
    for (int i = 1; i <= n / 2; ++i)
      p[i] = p[i] * (unsigned long long)simp.gifac(i * 2) % P;
    for (int i = 1; i <= n / 2; i += 2) p[i] = norm(P - p[i]);
    Poly q = (p.der() * -1_z).quo(p);
    cout << q[n / 2] << '\n';
  } else {
    Poly p = zeroes(n), q = zeroes(n);
    bool mOdd = m % 2;
    m /= 2;
    p[0] = 1;
    for (int i = 1; i <= n / 2; ++i)
      p[i * 2] =
          p[(i - 1) * 2] * (unsigned long long)(m + i) % P * (m - i + 1) % P;
    for (int i = 1; i <= n / 2; ++i)
      p[i * 2] = p[i * 2] * (unsigned long long)simp.gifac(i * 2) % P;
    for (int i = 1; i <= n / 2; i += 2) p[i * 2] = norm(P - p[i * 2]);
    q[1] = m;
    for (int i = 1; i <= (n - 1) / 2; ++i)
      q[i * 2 + 1] =
          q[i * 2 - 1] * (unsigned long long)(m + i) % P * (P - m + i) % P;
    for (int i = 1; i <= n; i += 2)
      q[i] = q[i] * (unsigned long long)simp.gifac(i) % P;
    q = q.quo(p);
    if (mOdd) ++q[1];
    Poly cyc = (q.der() * 1_z).quo(Poly(1) - q);
    cout << cyc[n] << '\n';
  }
}

### Prompt

Please create a solution in CPP to the following problem:

XYMXYM and CQXYM will prepare n problems for Codeforces. The difficulty of the problem i will be an integer a_i, where a_i ≥ 0. The difficulty of the problems must satisfy a_i+a_{i+1}<m (1 ≤ i < n), and a_1+a_n<m, where m is a fixed integer. XYMXYM wants to know how many plans of the difficulty of the problems there are modulo 998 244 353.

Two plans of difficulty a and b are different only if there is an integer i (1 ≤ i ≤ n) satisfying a_i ≠ b_i.

Input

A single line contains two integers n and m (2 ≤ n ≤ 50 000, 1 ≤ m ≤ 10^9).

Output

Print a single integer — the number of different plans.

Examples

Input


3 2


Output


4


Input


5 9


Output


8105


Input


21038 3942834


Output


338529212

Note

In the first test case, the valid a are: [0,0,0], [0,0,1], [0,1,0], [1,0,0].

[1,0,1] is invalid since a_1+a_n ≥ m.

### Response

```cpp
#include <bits/stdc++.h>
using namespace std;
void Solve();
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  Solve();
}
using namespace std;
const int P = 998244353, R = 3;
const int BRUTE_N2_LIMIT = 50;
int mpow(int x, int k, int p = P) {
  int ret = 1;
  while (k) {
    if (k & 1) ret = ret * (long long)x % p;
    x = x * (long long)x % p;
    k >>= 1;
  }
  return ret;
}
int norm(int x) { return x >= P ? x - P : x; }
void add(int &x, int y) {
  if ((x += y) >= P) x -= P;
}
void sub(int &x, int y) {
  if ((x -= y) < 0) x += P;
}
struct NumberTheory {
  mt19937 rng;
  NumberTheory()
      : rng(chrono::steady_clock::now().time_since_epoch().count()) {}
  void _exGcd(int a, int b, int &x, int &y) {
    if (!b) {
      x = 1;
      y = 0;
      return;
    }
    _exGcd(b, a % b, y, x);
    y -= a / b * x;
  }
  int inv(int a, int p = P) {
    int x, y;
    _exGcd(a, p, x, y);
    if (x < 0) x += p;
    return x;
  }
  template <class Integer>
  bool quadRes(Integer a, Integer b) {
    if (a <= 1) return true;
    while (a % 4 == 0) a /= 4;
    if (a % 2 == 0) return (b % 8 == 1 || b % 8 == 7) == quadRes(a / 2, b);
    return ((a - 1) % 4 == 0 || (b - 1) % 4 == 0) == quadRes(b % a, a);
  }
  int sqrt(int x, int p = P) {
    if (p == 2 || x <= 1) return x;
    int w, v, k = (p + 1) / 2;
    do {
      w = rng() % p;
    } while (quadRes(v = int((w * (long long)w - x + p) % p), p));
    pair<int, int> res(1, 0), a(w, 1);
    while (k) {
      if (k & 1)
        res = pair<int, int>((res.first * (long long)a.first +
                              res.second * (long long)a.second % p * v) %
                                 p,
                             (res.first * (long long)a.second +
                              res.second * (long long)a.first) %
                                 p);
      if (k >>= 1)
        a = pair<int, int>((a.first * (long long)a.first +
                            a.second * (long long)a.second % p * v) %
                               p,
                           (a.first * (long long)a.second << 1) % p);
    }
    return min(res.first, p - res.first);
  }
} nt;
template <class T, class Comp>
struct AdditionChain {
  int k;
  vector<T> prepare;
  T t, unit;
  Comp comp;
  AdditionChain(const T &t, const Comp &comp, int k, const T &unit = 1)
      : comp(comp), t(t), unit(unit), k(k), prepare(1U << k) {
    prepare[0] = unit;
    for (int i = 1; i < 1 << k; ++i) prepare[i] = comp(prepare[i - 1], t);
  }
  static AdditionChain fourRussians(const T &t, const Comp &comp, int lgn,
                                    const T &unit = 1) {
    lgn = max(lgn, 1);
    int k = 1, lglgn = 1;
    while (2 << lglgn <= lgn) ++lglgn;
    int w = lglgn / lgn;
    while (1 << k < w) ++k;
    return AdditionChain(t, comp, k, unit);
  }
  T pow(int n) const {
    if (n < 1 << k) return prepare[n];
    int r = n & ((1 << k) - 1);
    T step = pow(n >> k);
    for (int rep = 0; rep < k; ++rep) step = comp(step, step);
    return comp(step, prepare[r]);
  }
};
struct Simple {
  int n;
  vector<int> fac, ifac, inv;
  void build(int n) {
    this->n = n;
    fac.resize(n + 1);
    ifac.resize(n + 1);
    inv.resize(n + 1);
    fac[0] = 1;
    for (int x = 1; x <= n; ++x) fac[x] = fac[x - 1] * (long long)x % P;
    inv[1] = 1;
    for (int x = 2; x <= n; ++x)
      inv[x] = -(P / x) * (long long)inv[P % x] % P + P;
    ifac[0] = 1;
    for (int x = 1; x <= n; ++x) ifac[x] = ifac[x - 1] * (long long)inv[x] % P;
  }
  Simple() { build(1); }
  void check(int k) {
    int nn = n;
    if (k > nn) {
      while (k > nn) nn <<= 1;
      build(nn);
    }
  }
  int gfac(int k) {
    check(k);
    return fac[k];
  }
  int gifac(int k) {
    check(k);
    return ifac[k];
  }
  int ginv(int k) {
    check(k);
    return inv[k];
  }
  int binom(int n, int m) {
    if (m < 0 || m > n) return 0;
    return gfac(n) * (long long)gifac(m) % P * gifac(n - m) % P;
  }
} simp;
const int L2 = 11;
struct NTT {
  int L;
  int brev[1 << L2];
  vector<int> root;
  NTT() : L(-1) {
    for (int i = 1; i < (1 << L2); ++i)
      brev[i] = brev[i >> 1] >> 1 | ((i & 1) << (L2 - 1));
  }
  void prepRoot(int l) {
    L = l;
    root.resize(2 << L);
    for (int i = 0; i <= L; ++i) {
      int *w = root.data() + (1 << i);
      w[0] = 1;
      int omega = mpow(R, (P - 1) >> i);
      for (int j = 1; j < 1 << i; ++j) w[j] = w[j - 1] * (long long)omega % P;
    }
  }
  void fft(int *a, int lgn, int d = 1) {
    if (L < lgn) prepRoot(lgn);
    int n = 1 << lgn;
    for (int i = 0; i < n; ++i) {
      int rev = (brev[i >> L2] | (brev[i & ((1 << L2) - 1)] << L2)) >>
                ((L2 << 1) - lgn);
      if (i < rev) swap(a[i], a[rev]);
    }
    for (int i = 1; i < n; i <<= 1) {
      int *w = root.data() + (i << 1);
      for (int j = 0; j < n; j += i << 1) {
        for (int k = 0; k < i; ++k) {
          int aa = w[k] * (long long)a[i + j + k] % P;
          a[i + j + k] = norm(a[j + k] + P - aa);
          add(a[j + k], aa);
        }
      }
    }
    if (d == -1) {
      reverse(a + 1, a + n);
      int nv = mpow(n, P - 2);
      for (int i = 0; i < n; ++i) a[i] = a[i] * (long long)nv % P;
    }
  }
} ntt;
struct Poly {
  vector<int> a;
  Poly(int v = 0) : a(1) {
    if ((v %= P) < 0) v += P;
    a[0] = v;
  }
  Poly(const vector<int> &a) : a(a) {}
  Poly(initializer_list<int> init) : a(init) {}
  int operator[](int k) const { return k < a.size() ? a[k] : 0; }
  int &operator[](int k) {
    if (k >= a.size()) a.resize(k + 1);
    return a[k];
  }
  int deg() const { return a.size() - 1; }
  void redeg(int d) { a.resize(d + 1); }
  Poly monic() const;
  Poly sunic() const;
  Poly slice(int d) const {
    if (d < a.size()) return vector<int>(a.begin(), a.begin() + d + 1);
    vector<int> res(a);
    res.resize(d + 1);
    return res;
  }
  int *base() { return a.data(); }
  const int *base() const { return a.data(); }
  Poly println(FILE *fp) const {
    fprintf(fp, "%d", a[0]);
    for (int i = 1; i < a.size(); ++i) fprintf(fp, " %d", a[i]);
    fputc('\n', fp);
    return *this;
  }
  Poly operator+(const Poly &rhs) const {
    vector<int> res(max(a.size(), rhs.a.size()));
    for (int i = 0; i < res.size(); ++i)
      if ((res[i] = operator[](i) + rhs[i]) >= P) res[i] -= P;
    return res;
  }
  Poly operator-() const {
    Poly ret(a);
    for (int i = 0; i < a.size(); ++i)
      if (ret[i]) ret[i] = P - ret[i];
    return ret;
  }
  Poly operator-(const Poly &rhs) const { return operator+(-rhs); }
  Poly operator*(const Poly &rhs) const;
  Poly operator/(const Poly &rhs) const;
  Poly operator%(const Poly &rhs) const;
  Poly der() const;
  Poly integ() const;
  Poly inv() const;
  Poly sqrt() const;
  Poly ln() const;
  Poly exp() const;
  pair<Poly, Poly> sqrti() const;
  pair<Poly, Poly> expi() const;
  Poly quo(const Poly &rhs) const;
  pair<Poly, Poly> iquo(const Poly &rhs) const;
  pair<Poly, Poly> div(const Poly &rhs) const;
  Poly taylor(int k) const;
  Poly pow(int k) const;
  Poly exp(int k) const;
};
Poly zeroes(int deg) { return vector<int>(deg + 1); }
struct Newton {
  void inv(const Poly &f, const Poly &nttf, Poly &g, const Poly &nttg, int t) {
    int n = 1 << t;
    Poly prod = nttf;
    for (int i = 0; i < (n << 1); ++i)
      prod[i] = prod[i] * (long long)nttg[i] % P;
    ntt.fft(prod.base(), t + 1, -1);
    for (int i = 0; i < n; ++i) prod[i] = 0;
    ntt.fft(prod.base(), t + 1, 1);
    for (int i = 0; i < (n << 1); ++i)
      prod[i] = prod[i] * (long long)nttg[i] % P;
    ntt.fft(prod.base(), t + 1, -1);
    for (int i = 0; i < n; ++i) prod[i] = 0;
    g = g - prod;
  }
  void inv(const Poly &f, const Poly &nttf, Poly &g, int t) {
    Poly nttg = g;
    nttg.redeg((2 << t) - 1);
    ntt.fft(nttg.base(), t + 1, 1);
    inv(f, nttf, g, nttg, t);
  }
  void inv(const Poly &f, Poly &g, int t) {
    Poly nttg = g;
    nttg.redeg((2 << t) - 1);
    ntt.fft(nttg.base(), t + 1, 1);
    Poly nttf = f;
    nttf.redeg((2 << t) - 1);
    ntt.fft(nttf.base(), t + 1, 1);
    inv(f, nttf, g, nttg, t);
  }
  void sqrt(const Poly &f, Poly &g, Poly &nttg, Poly &h, int t) {
    for (int i = 0; i < (1 << t); ++i) nttg[i] = mpow(nttg[i], 2);
    ntt.fft(nttg.base(), t, -1);
    nttg = nttg - f;
    for (int i = 0; i < (1 << t); ++i)
      if ((nttg[i + (1 << t)] += nttg[i]) >= P) nttg[i + (1 << t)] -= P;
    memset(nttg.base(), 0, sizeof(int) << t);
    ntt.fft(nttg.base(), t + 1, 1);
    Poly tmp = h;
    tmp.redeg((2 << t) - 1);
    ntt.fft(tmp.base(), t + 1, 1);
    for (int i = 0; i < (2 << t); ++i) tmp[i] = tmp[i] * (long long)nttg[i] % P;
    ntt.fft(tmp.base(), t + 1, -1);
    memset(tmp.base(), 0, sizeof(int) << t);
    g = g - tmp * nt.inv(2);
  }
  void exp(const Poly &f, Poly &g, Poly &nttg, Poly &h, int t) {
    Poly ntth(h);
    ntt.fft(ntth.base(), t, 1);
    Poly dg = g.der().slice((1 << t) - 1);
    ntt.fft(dg.base(), t, 1);
    Poly tmp = zeroes((1 << t) - 1);
    for (int i = 0; i < (1 << t); ++i) {
      tmp[i] = nttg[i << 1] * (long long)ntth[i] % P;
      dg[i] = dg[i] * (long long)ntth[i] % P;
    }
    ntt.fft(tmp.base(), t, -1);
    ntt.fft(dg.base(), t, -1);
    if (--tmp[0] < 0) tmp[0] = P - 1;
    dg.redeg((2 << t) - 1);
    Poly df0 = f.der().slice((1 << t) - 1);
    df0[(1 << t) - 1] = 0;
    for (int i = 0; i < (1 << t); ++i) {
      if ((dg[i | 1 << t] = dg[i] - df0[i]) < 0) dg[i | 1 << t] += P;
    }
    memcpy(dg.base(), df0.base(), sizeof(int) * ((1 << t) - 1));
    tmp.redeg((2 << t) - 1);
    ntt.fft(tmp.base(), t + 1, 1);
    df0.redeg((2 << t) - 1);
    ntt.fft(df0.base(), t + 1, 1);
    for (int i = 0; i < (2 << t); ++i) df0[i] = df0[i] * (long long)tmp[i] % P;
    ntt.fft(df0.base(), t + 1, -1);
    memcpy(df0.base() + (1 << t), df0.base(), sizeof(int) << t);
    memset(df0.base(), 0, sizeof(int) << t);
    dg = (dg - df0).integ().slice((2 << t) - 1) - f;
    ntt.fft(dg.base(), t + 1, 1);
    for (int i = 0; i < (2 << t); ++i) tmp[i] = dg[i] * (long long)nttg[i] % P;
    ntt.fft(tmp.base(), t + 1, -1);
    g.redeg((2 << t) - 1);
    for (int i = 1 << t; i < (2 << t); ++i)
      if (tmp[i]) g[i] = P - tmp[i];
  }
} nit;
struct SemiRelaxedConvolution {
  template <class Function>
  void run(const vector<int> &a, vector<int> &b, const Function &relax) {
    int n = a.size() - 1;
    function<void(int, int)> divideConquer = [&](int l, int r) {
      if (r - l <= BRUTE_N2_LIMIT) {
        for (int i = l; i <= r; ++i) {
          for (int j = l; j < i; ++j)
            b[i] = (b[i] + b[j] * (long long)a[i - j]) % P;
          relax(i);
        }
        return;
      }
      int lg = 31 - __builtin_clz(r - l) + 1;
      int d = (r - l) / lg + 1;
      int lgd = 0;
      while ((1 << lgd) < d) ++lgd;
      ++lgd;
      vector<int> top((lg << (lgd + 1)));
      for (int i = 0; i < lg; ++i) {
        copy(a.begin() + i * d, a.begin() + min((i + 2) * d, n + 1),
             top.begin() + (i << lgd));
        ntt.fft(top.data() + (i << lgd), lgd, 1);
      }
      for (int i = 0; i < lg; ++i) {
        if (i) ntt.fft(top.data() + ((lg + i) << lgd), lgd, -1);
        for (int j = 0; j < min(d, r - l - i * d + 1); ++j)
          b[l + i * d + j] =
              norm(b[l + i * d + j] + top[((lg + i) << lgd) + d + j]);
        divideConquer(l + i * d, min(l + (i + 1) * d - 1, r));
        if (i + 1 < lg) {
          copy(b.begin() + l + i * d, b.begin() + min(l + (i + 1) * d, n + 1),
               top.begin() + ((lg + i) << lgd));
          fill(top.data() + ((lg + i) << lgd) + d,
               top.data() + ((lg + i + 1) << lgd), 0);
          ntt.fft(top.data() + ((lg + i) << lgd), lgd, 1);
        }
        for (int j = i + 1; j < lg; ++j) {
          for (int k = 0; k < (1 << lgd); ++k)
            top[((lg + j) << lgd) + k] =
                (top[((lg + j) << lgd) + k] +
                 top[((j - i - 1) << lgd) + k] *
                     (long long)top[((lg + i) << lgd) + k]) %
                P;
        }
      }
    };
    divideConquer(0, n);
  }
} src;
struct Transposition {
  vector<int> _mul(int l, vector<int> res, const Poly &b) {
    vector<int> tmp(1 << l);
    memcpy(tmp.data(), b.a.data(), sizeof(int) * (b.deg() + 1));
    reverse(tmp.begin() + 1, tmp.end());
    ntt.fft(tmp.data(), l, 1);
    for (int i = 0; i < (1 << l); ++i) res[i] = res[i] * (long long)tmp[i] % P;
    ntt.fft(res.data(), l, -1);
    return res;
  }
  Poly bfMul(const Poly &a, const Poly &b) {
    int n = a.deg(), m = b.deg();
    Poly ret = zeroes(n - m);
    for (int i = 0; i <= n - m; ++i)
      for (int j = 0; j <= m; ++j)
        ret[i] = (ret[i] + a[i + j] * (long long)b[j]) % P;
    return ret;
  }
  Poly mul(const Poly &a, const Poly &b) {
    if (a.deg() < b.deg()) return 0;
    if (a.deg() <= BRUTE_N2_LIMIT) return bfMul(a, b);
    int l = 0;
    while ((1 << l) <= a.deg()) ++l;
    vector<int> res(1 << l);
    memcpy(res.data(), a.a.data(), sizeof(int) * (a.deg() + 1));
    ntt.fft(res.data(), l, 1);
    res = _mul(l, res, b);
    res.resize(a.deg() - b.deg() + 1);
    return res;
  }
  pair<Poly, Poly> mul2(const Poly &a, const Poly &b1, const Poly &b2) {
    if (a.deg() <= BRUTE_N2_LIMIT) return make_pair(bfMul(a, b1), bfMul(a, b2));
    int l = 0;
    while ((1 << l) <= a.deg()) ++l;
    vector<int> fa(1 << l);
    memcpy(fa.data(), a.a.data(), sizeof(int) * (a.deg() + 1));
    ntt.fft(fa.data(), l, 1);
    vector<int> res1 = _mul(l, fa, b1), res2 = _mul(l, fa, b2);
    res1.resize(a.deg() - b1.deg() + 1);
    res2.resize(a.deg() - b2.deg() + 1);
    return make_pair(res1, res2);
  }
  vector<int> ls, rs, pos;
  vector<Poly> p, q;
  void _build(int n) {
    ls.assign(n * 2 - 1, 0);
    rs.assign(n * 2 - 1, 0);
    p.assign(n * 2 - 1, 0);
    q.assign(n * 2 - 1, 0);
    pos.resize(n);
    int cnt = 0;
    function<int(int, int)> dfs = [&](int l, int r) {
      if (l == r) {
        pos[l] = cnt;
        return cnt++;
      }
      int ret = cnt++;
      int mid = (l + r) >> 1;
      ls[ret] = dfs(l, mid);
      rs[ret] = dfs(mid + 1, r);
      return ret;
    };
    dfs(0, n - 1);
  }
  vector<int> _eval(vector<int> f, const vector<int> &x) {
    int n = f.size();
    _build(n);
    for (int i = 0; i < n; ++i) q[pos[i]] = {1, norm(P - x[i])};
    for (int i = n * 2 - 2; i >= 0; --i)
      if (ls[i]) q[i] = q[ls[i]] * q[rs[i]];
    f.resize(n * 2);
    p[0] = mul(f, q[0].inv());
    for (int i = 0; i < n * 2 - 1; ++i)
      if (ls[i]) tie(p[ls[i]], p[rs[i]]) = mul2(p[i], q[rs[i]], q[ls[i]]);
    vector<int> ret(n);
    for (int i = 0; i < n; ++i) ret[i] = p[pos[i]][0];
    return ret;
  }
  vector<int> eval(const Poly &f, const vector<int> &x) {
    int n = f.deg() + 1, m = x.size();
    vector<int> tmpf = f.a, tmpx = x;
    tmpf.resize(max(n, m));
    tmpx.resize(max(n, m));
    vector<int> ret = _eval(tmpf, tmpx);
    ret.resize(m);
    return ret;
  }
  Poly inter(const vector<int> &x, const vector<int> &y) {
    int n = x.size();
    _build(n);
    for (int i = 0; i < n; ++i) q[pos[i]] = {1, norm(P - x[i])};
    for (int i = n * 2 - 2; i >= 0; --i)
      if (ls[i]) q[i] = q[ls[i]] * q[rs[i]];
    Poly tmp = q[0];
    reverse(tmp.a.begin(), tmp.a.end());
    vector<int> f = tmp.der().a;
    f.resize(n * 2);
    p[0] = mul(f, q[0].inv());
    for (int i = 0; i < n * 2 - 1; ++i)
      if (ls[i]) tie(p[ls[i]], p[rs[i]]) = mul2(p[i], q[rs[i]], q[ls[i]]);
    for (int i = 0; i < n; ++i)
      p[pos[i]] = nt.inv(p[pos[i]][0]) * (long long)y[i] % P;
    for (int i = 0; i < n * 2 - 1; ++i) reverse(q[i].a.begin(), q[i].a.end());
    for (int i = n * 2 - 2; i >= 0; --i)
      if (ls[i]) p[i] = p[ls[i]] * q[rs[i]] + p[rs[i]] * q[ls[i]];
    return p[0];
  }
} tp;
Poly operator"" _z(unsigned long long a) { return {0, (int)a}; }
Poly operator+(int v, const Poly &rhs) { return Poly(v) + rhs; }
Poly Poly::operator*(const Poly &rhs) const {
  int n = deg(), m = rhs.deg();
  if (n <= 10 || m <= 10 || n + m <= BRUTE_N2_LIMIT) {
    Poly ret = zeroes(n + m);
    for (int i = 0; i <= n; ++i)
      for (int j = 0; j <= m; ++j)
        ret[i + j] = (ret[i + j] + a[i] * (long long)rhs[j]) % P;
    return ret;
  }
  n += m;
  int l = 0;
  while ((1 << l) <= n) ++l;
  vector<int> res(1 << l), tmp(1 << l);
  memcpy(res.data(), base(), a.size() * sizeof(int));
  ntt.fft(res.data(), l, 1);
  memcpy(tmp.data(), rhs.base(), rhs.a.size() * sizeof(int));
  ntt.fft(tmp.data(), l, 1);
  for (int i = 0; i < (1 << l); ++i) res[i] = res[i] * (long long)tmp[i] % P;
  ntt.fft(res.data(), l, -1);
  res.resize(n + 1);
  return res;
}
Poly Poly::inv() const {
  Poly g = nt.inv(a[0]);
  for (int t = 0; (1 << t) <= deg(); ++t) nit.inv(slice((2 << t) - 1), g, t);
  g.redeg(deg());
  return g;
}
Poly Poly::taylor(int k) const {
  int n = deg();
  Poly t = zeroes(n);
  simp.check(n);
  for (int i = 0; i <= n; ++i) t[n - i] = a[i] * (long long)simp.fac[i] % P;
  int pw = 1;
  Poly help = vector<int>(simp.ifac.begin(), simp.ifac.begin() + n + 1);
  for (int i = 0; i <= n; ++i) {
    help[i] = help[i] * (long long)pw % P;
    pw = pw * (long long)k % P;
  }
  t = t * help;
  for (int i = 0; i <= n; ++i) help[i] = t[n - i] * (long long)simp.ifac[i] % P;
  return help;
}
Poly Poly::pow(int k) const {
  if (k == 0) return 1;
  if (k == 1) return *this;
  int n = deg() * k;
  int lgn = 0;
  while ((1 << lgn) <= n) ++lgn;
  vector<int> val = a;
  val.resize(1 << lgn);
  ntt.fft(val.data(), lgn, 1);
  for (int i = 0; i < (1 << lgn); ++i) val[i] = mpow(val[i], k);
  ntt.fft(val.data(), lgn, -1);
  return val;
}
Poly Poly::der() const {
  if (deg() == 0) return 0;
  vector<int> res(deg());
  for (int i = 0; i < deg(); ++i) res[i] = a[i + 1] * (long long)(i + 1) % P;
  return res;
}
Poly Poly::integ() const {
  vector<int> res(deg() + 2);
  simp.check(deg() + 1);
  for (int i = 0; i <= deg(); ++i)
    res[i + 1] = a[i] * (long long)simp.inv[i + 1] % P;
  return res;
}
Poly Poly::quo(const Poly &rhs) const {
  if (rhs.deg() == 0) return a[0] * (long long)nt.inv(rhs[0]) % P;
  Poly g = nt.inv(rhs[0]);
  int t = 0, n;
  for (n = 1; (n << 1) <= rhs.deg(); ++t, n <<= 1)
    nit.inv(rhs.slice((n << 1) - 1), g, t);
  Poly nttg = g;
  nttg.redeg((n << 1) - 1);
  ntt.fft(nttg.base(), t + 1, 1);
  Poly eps1 = rhs.slice((n << 1) - 1);
  ntt.fft(eps1.base(), t + 1, 1);
  for (int i = 0; i < (n << 1); ++i) eps1[i] = eps1[i] * (long long)nttg[i] % P;
  ntt.fft(eps1.base(), t + 1, -1);
  memcpy(eps1.base(), eps1.base() + n, sizeof(int) << t);
  memset(eps1.base() + n, 0, sizeof(int) << t);
  ntt.fft(eps1.base(), t + 1, 1);
  Poly h0 = slice(n - 1);
  h0.redeg((n << 1) - 1);
  ntt.fft(h0.base(), t + 1);
  Poly h0g0 = zeroes((n << 1) - 1);
  for (int i = 0; i < (n << 1); ++i) h0g0[i] = h0[i] * (long long)nttg[i] % P;
  ntt.fft(h0g0.base(), t + 1, -1);
  Poly h0eps1 = zeroes((n << 1) - 1);
  for (int i = 0; i < (n << 1); ++i) h0eps1[i] = h0[i] * (long long)eps1[i] % P;
  ntt.fft(h0eps1.base(), t + 1, -1);
  for (int i = 0; i < n; ++i) {
    h0eps1[i] = operator[](i + n) - h0eps1[i];
    if (h0eps1[i] < 0) h0eps1[i] += P;
  }
  memset(h0eps1.base() + n, 0, sizeof(int) << t);
  ntt.fft(h0eps1.base(), t + 1);
  for (int i = 0; i < (n << 1); ++i)
    h0eps1[i] = h0eps1[i] * (long long)nttg[i] % P;
  ntt.fft(h0eps1.base(), t + 1, -1);
  memcpy(h0eps1.base() + n, h0eps1.base(), sizeof(int) << t);
  memset(h0eps1.base(), 0, sizeof(int) << t);
  return (h0g0 + h0eps1).slice(rhs.deg());
}
Poly Poly::ln() const {
  if (deg() == 0) return 0;
  return der().quo(slice(deg() - 1)).integ();
}
pair<Poly, Poly> Poly::sqrti() const {
  Poly g = nt.sqrt(a[0]), h = nt.inv(g[0]), nttg = g;
  for (int t = 0; (1 << t) <= deg(); ++t) {
    nit.sqrt(slice((2 << t) - 1), g, nttg, h, t);
    nttg = g;
    ntt.fft(nttg.base(), t + 1, 1);
    nit.inv(g, nttg, h, t);
  }
  return make_pair(g.slice(deg()), h.slice(deg()));
}
Poly Poly::sqrt() const {
  Poly g = nt.sqrt(a[0]), h = nt.inv(g[0]), nttg = g;
  for (int t = 0; (1 << t) <= deg(); ++t) {
    nit.sqrt(slice((2 << t) - 1), g, nttg, h, t);
    if ((2 << t) <= deg()) {
      nttg = g;
      ntt.fft(nttg.base(), t + 1, 1);
      nit.inv(g, nttg, h, t);
    }
  }
  return g.slice(deg());
}
Poly Poly::exp() const {
  vector<int> der(a), ret(a.size());
  for (int i = 0; i < a.size(); ++i) der[i] = der[i] * (long long)i % P;
  src.run(der, ret, [&](int i) {
    if (i == 0)
      ret[0] = 1;
    else
      ret[i] = ret[i] * (long long)simp.ginv(i) % P;
  });
  return ret;
}
pair<Poly, Poly> Poly::expi() const {
  Poly g = 1, h = 1, nttg = {1, 1};
  for (int t = 0; (1 << t) <= deg(); ++t) {
    nit.exp(slice((2 << t) - 1), g, nttg, h, t);
    nttg = g;
    nttg.redeg((4 << t) - 1);
    ntt.fft(nttg.base(), t + 2);
    Poly f2n = zeroes((2 << t) - 1);
    for (int i = 0; i < (2 << t); ++i) f2n[i] = nttg[i << 1];
    nit.inv(g, f2n, h, t);
  }
  return make_pair(g.slice(deg()), h.slice(deg()));
}
Poly Poly::exp(int k) const {
  int lead, lz = 0;
  while (lz < deg() && !a[lz]) ++lz;
  if (lz == deg() && !a[lz]) return *this;
  lead = a[lz];
  if (lz * (long long)k > deg()) return zeroes(deg());
  Poly part =
      Poly(vector<int>(a.begin() + lz, a.begin() + deg() - lz * (k - 1) + 1)) *
      nt.inv(lead);
  part = (part.ln() * k).exp() * mpow(lead, k);
  vector<int> ret(deg() + 1);
  memcpy(ret.data() + lz * k, part.base(), sizeof(int) * (deg() - lz * k + 1));
  return ret;
}
Poly Poly::operator/(const Poly &rhs) const {
  int n = deg(), m = rhs.deg();
  if (n < m) return 0;
  Poly ta(vector<int>(a.rbegin(), a.rend())),
      tb(vector<int>(rhs.a.rbegin(), rhs.a.rend()));
  ta.redeg(n - m);
  tb.redeg(n - m);
  Poly q = ta.quo(tb);
  reverse(q.a.begin(), q.a.end());
  return q;
}
pair<Poly, Poly> Poly::div(const Poly &rhs) const {
  if (deg() < rhs.deg()) return make_pair(0, *this);
  int n = deg(), m = rhs.deg();
  Poly q = operator/(rhs), r;
  int lgn = 0;
  while ((1 << lgn) < rhs.deg()) ++lgn;
  int t = (1 << lgn) - 1;
  r = zeroes(t);
  Poly tmp = zeroes(t);
  for (int i = 0; i <= m; ++i)
    if ((r[i & t] += rhs[i]) >= P) r[i & t] -= P;
  for (int i = 0; i <= n - m; ++i)
    if ((tmp[i & t] += q[i]) >= P) tmp[i & t] -= P;
  ntt.fft(r.base(), lgn, 1);
  ntt.fft(tmp.base(), lgn, 1);
  for (int i = 0; i <= t; ++i) tmp[i] = tmp[i] * (long long)r[i] % P;
  ntt.fft(tmp.base(), lgn, -1);
  memset(r.base(), 0, sizeof(int) << lgn);
  for (int i = 0; i <= n; ++i)
    if ((r[i & t] += a[i]) >= P) r[i & t] -= P;
  for (int i = 0; i < m; ++i)
    if ((r[i] -= tmp[i]) < 0) r[i] += P;
  return make_pair(q, r.slice(m - 1));
}
Poly Poly::operator%(const Poly &rhs) const {
  if (deg() < rhs.deg()) return *this;
  return div(rhs).second;
}
template <class T>
istream &operator>>(istream &is, vector<T> &v) {
  for (T &x : v) is >> x;
  return is;
}
template <class T>
ostream &operator<<(ostream &os, const vector<T> &v) {
  if (!v.empty()) {
    os << v.front();
    for (int i = 1; i < v.size(); ++i) os << ' ' << v[i];
  }
  return os;
}
void Solve() {
  int n, m;
  cin >> n >> m;
  if (n % 2 == 0) {
    Poly p = zeroes(n / 2);
    p[0] = 1;
    for (int i = 1; i <= n / 2; ++i)
      p[i] = p[i - 1] * (unsigned long long)(m + i) % P * (m - i + 1) % P;
    for (int i = 1; i <= n / 2; ++i)
      p[i] = p[i] * (unsigned long long)simp.gifac(i * 2) % P;
    for (int i = 1; i <= n / 2; i += 2) p[i] = norm(P - p[i]);
    Poly q = (p.der() * -1_z).quo(p);
    cout << q[n / 2] << '\n';
  } else {
    Poly p = zeroes(n), q = zeroes(n);
    bool mOdd = m % 2;
    m /= 2;
    p[0] = 1;
    for (int i = 1; i <= n / 2; ++i)
      p[i * 2] =
          p[(i - 1) * 2] * (unsigned long long)(m + i) % P * (m - i + 1) % P;
    for (int i = 1; i <= n / 2; ++i)
      p[i * 2] = p[i * 2] * (unsigned long long)simp.gifac(i * 2) % P;
    for (int i = 1; i <= n / 2; i += 2) p[i * 2] = norm(P - p[i * 2]);
    q[1] = m;
    for (int i = 1; i <= (n - 1) / 2; ++i)
      q[i * 2 + 1] =
          q[i * 2 - 1] * (unsigned long long)(m + i) % P * (P - m + i) % P;
    for (int i = 1; i <= n; i += 2)
      q[i] = q[i] * (unsigned long long)simp.gifac(i) % P;
    q = q.quo(p);
    if (mOdd) ++q[1];
    Poly cyc = (q.der() * 1_z).quo(Poly(1) - q);
    cout << cyc[n] << '\n';
  }
}

```