#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
using ll = long long;
#define rep(i, n) for (int i = 0; i < (n); ++i)

int main() {
  string a, b;
  cin >> a >> b;
  reverse(a.begin(), a.end());
  reverse(b.begin(), b.end());
  string ans = "";
  rep(i, max(a.size(), b.size())) {
    int x = (i >= a.size() ? 0 : a[i] - '0');
    int y = (i >= b.size() ? 0 : b[i] - '0');
    if (x + y >= 10) {
      ans += to_string((x + y) % 10);
      if (i >= a.size() - 1 && i >= b.size() - 1) {
        ans += "1";
      }
      else if (i < a.size() - 1) {
        a[i + 1]++;
      }
      else {
        b[i + 1]++;
      }
    }
    else {
      ans += to_string(x + y);
    }
  }
  reverse(ans.begin(), ans.end());
  cout << ans << endl;
  return 0;
}