#include <bits/stdc++.h>
using namespace std;
const int INC_OP = 1, DEC_OP = 2, INV_OP = 3;
struct node {
  int dist;
  char prev_op;
};
int U, V, P;
int reverse_op(int op) {
  switch (op) {
    case INC_OP:
      return DEC_OP;
    case DEC_OP:
      return INC_OP;
    case INV_OP:
      return INV_OP;
  }
  return -1;
}
int mod_pow(long long a, int b) {
  long long result = 1;
  while (b > 0) {
    if (b & 1) result = result * a % P;
    a = a * a % P;
    b >>= 1;
  }
  return result;
}
int mod_inc(int a) { return a == P - 1 ? 0 : a + 1; }
int mod_dec(int a) { return a == 0 ? P - 1 : a - 1; }
int mod_inv(int a) { return mod_pow(a, P - 2); }
int apply_op(int a, int op) {
  switch (op) {
    case INC_OP:
      return mod_inc(a);
    case DEC_OP:
      return mod_dec(a);
    case INV_OP:
      return mod_inv(a);
  }
  return -1;
}
void bfs_iteration(queue<int> &q, unordered_map<int, node> &number_map,
                   int current_dist) {
  assert(!q.empty());
  while (!q.empty()) {
    int current = q.front();
    if (number_map[current].dist > current_dist) return;
    q.pop();
    for (char op = 1; op <= 3; op++) {
      int next = apply_op(current, op);
      if (number_map.find(next) == number_map.end()) {
        number_map[next] = (node){number_map[current].dist + 1, op};
        q.push(next);
      }
    }
  }
}
int common(unordered_map<int, node> &U_map, unordered_map<int, node> &V_map) {
  for (auto it = U_map.begin(); it != U_map.end(); it++)
    if (V_map.find(it->first) != V_map.end()) return it->first;
  return -1;
}
int main() {
  ios::sync_with_stdio(false);
  cin.tie(NULL);
  cin >> U >> V >> P;
  unordered_map<int, node> U_map, V_map;
  queue<int> U_queue, V_queue;
  U_map[U] = (node){0, -1};
  V_map[V] = (node){0, -1};
  U_queue.push(U);
  V_queue.push(V);
  int U_dist = 0, V_dist = 0;
  int middle = -1;
  while (true) {
    middle = common(U_map, V_map);
    if (middle != -1) break;
    if (U_map.size() < V_map.size())
      bfs_iteration(U_queue, U_map, U_dist++);
    else
      bfs_iteration(V_queue, V_map, V_dist++);
  }
  vector<int> U_ops, V_ops;
  for (int num = middle; num != U;
       num = apply_op(num, reverse_op(U_map[num].prev_op)))
    U_ops.push_back(U_map[num].prev_op);
  reverse(U_ops.begin(), U_ops.end());
  for (int num = middle; num != V;
       num = apply_op(num, reverse_op(V_map[num].prev_op)))
    V_ops.push_back(reverse_op(V_map[num].prev_op));
  vector<int> combined;
  for (int op : U_ops) combined.push_back(op);
  for (int op : V_ops) combined.push_back(op);
  cout << combined.size() << '\n';
  for (int i = 0; i < (int)combined.size(); i++)
    cout << combined[i] << (i < (int)combined.size() - 1 ? ' ' : '\n');
  int number = U;
  for (int op : combined) {
    assert(op == INC_OP || op == DEC_OP || op == INV_OP);
    number = apply_op(number, op);
  }
  assert(number == V);
  return 0;
}

### Prompt

Your task is to create a CPP solution to the following problem:

Allen is playing Number Clicker on his phone.

He starts with an integer u on the screen. Every second, he can press one of 3 buttons.

  1. Turn u → u+1 \pmod{p}. 
  2. Turn u → u+p-1 \pmod{p}. 
  3. Turn u → u^{p-2} \pmod{p}. 



Allen wants to press at most 200 buttons and end up with v on the screen. Help him!

Input

The first line of the input contains 3 positive integers: u, v, p (0 ≤ u, v ≤ p-1, 3 ≤ p ≤ 10^9 + 9). p is guaranteed to be prime.

Output

On the first line, print a single integer ℓ, the number of button presses. On the second line, print integers c_1, ..., c_ℓ, the button presses. For 1 ≤ i ≤ ℓ, 1 ≤ c_i ≤ 3.

We can show that the answer always exists.

Examples

Input

1 3 5


Output

2
1 1


Input

3 2 5


Output

1
3

Note

In the first example the integer on the screen changes as 1 → 2 → 3.

In the second example the integer on the screen changes as 3 → 2. 

### Response

```cpp
#include <bits/stdc++.h>
using namespace std;
const int INC_OP = 1, DEC_OP = 2, INV_OP = 3;
struct node {
  int dist;
  char prev_op;
};
int U, V, P;
int reverse_op(int op) {
  switch (op) {
    case INC_OP:
      return DEC_OP;
    case DEC_OP:
      return INC_OP;
    case INV_OP:
      return INV_OP;
  }
  return -1;
}
int mod_pow(long long a, int b) {
  long long result = 1;
  while (b > 0) {
    if (b & 1) result = result * a % P;
    a = a * a % P;
    b >>= 1;
  }
  return result;
}
int mod_inc(int a) { return a == P - 1 ? 0 : a + 1; }
int mod_dec(int a) { return a == 0 ? P - 1 : a - 1; }
int mod_inv(int a) { return mod_pow(a, P - 2); }
int apply_op(int a, int op) {
  switch (op) {
    case INC_OP:
      return mod_inc(a);
    case DEC_OP:
      return mod_dec(a);
    case INV_OP:
      return mod_inv(a);
  }
  return -1;
}
void bfs_iteration(queue<int> &q, unordered_map<int, node> &number_map,
                   int current_dist) {
  assert(!q.empty());
  while (!q.empty()) {
    int current = q.front();
    if (number_map[current].dist > current_dist) return;
    q.pop();
    for (char op = 1; op <= 3; op++) {
      int next = apply_op(current, op);
      if (number_map.find(next) == number_map.end()) {
        number_map[next] = (node){number_map[current].dist + 1, op};
        q.push(next);
      }
    }
  }
}
int common(unordered_map<int, node> &U_map, unordered_map<int, node> &V_map) {
  for (auto it = U_map.begin(); it != U_map.end(); it++)
    if (V_map.find(it->first) != V_map.end()) return it->first;
  return -1;
}
int main() {
  ios::sync_with_stdio(false);
  cin.tie(NULL);
  cin >> U >> V >> P;
  unordered_map<int, node> U_map, V_map;
  queue<int> U_queue, V_queue;
  U_map[U] = (node){0, -1};
  V_map[V] = (node){0, -1};
  U_queue.push(U);
  V_queue.push(V);
  int U_dist = 0, V_dist = 0;
  int middle = -1;
  while (true) {
    middle = common(U_map, V_map);
    if (middle != -1) break;
    if (U_map.size() < V_map.size())
      bfs_iteration(U_queue, U_map, U_dist++);
    else
      bfs_iteration(V_queue, V_map, V_dist++);
  }
  vector<int> U_ops, V_ops;
  for (int num = middle; num != U;
       num = apply_op(num, reverse_op(U_map[num].prev_op)))
    U_ops.push_back(U_map[num].prev_op);
  reverse(U_ops.begin(), U_ops.end());
  for (int num = middle; num != V;
       num = apply_op(num, reverse_op(V_map[num].prev_op)))
    V_ops.push_back(reverse_op(V_map[num].prev_op));
  vector<int> combined;
  for (int op : U_ops) combined.push_back(op);
  for (int op : V_ops) combined.push_back(op);
  cout << combined.size() << '\n';
  for (int i = 0; i < (int)combined.size(); i++)
    cout << combined[i] << (i < (int)combined.size() - 1 ? ' ' : '\n');
  int number = U;
  for (int op : combined) {
    assert(op == INC_OP || op == DEC_OP || op == INV_OP);
    number = apply_op(number, op);
  }
  assert(number == V);
  return 0;
}

```