#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (int)(n); i++)
using namespace std;
using ll = long long;
using P = pair<int,int>;

int main() {
  int A, B;
  string S;
  cin >> A, B, S;

  cout << A + B << S << endl;
  return 0;
}