A + B is often used as an example of the easiest problem possible to show some contest platform. However, some scientists have observed that sometimes this problem is not so easy to get accepted. Want to try?

Input

The input contains two integers a and b (0 ≤ a, b ≤ 103), separated by a single space.

Output

Output the sum of the given integers.

Examples

Input

5 14


Output

19


Input

381 492


Output

873
#include <bits/stdc++.h>
using namespace std;
using vi = vector<int>;
using vll = vector<long long>;
using vld = vector<long double>;
using vch = vector<char>;
using mi = map<int, int>;
using mll = map<long long, long long>;
using msll = map<string, long long>;
using sll = set<long long>;
using si = set<int>;
using pll = pair<long long, long long>;
const long long INF = 1e9 + 5;
const long long MOD = 1e5;
const long long ASO = 1e18 + 5;
const long long ANI = 1e6 + 5;
const long long inf = -1e9;
const long long mod = -1e5;
const long long aso = -1e18;
long long a, b;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  cin >> a >> b;
  cin >> a >> b;
  cout << a + b;
  return 0;
}
