// 高精度加法（字符串实现）
#include <bits/stdc++.h>
using namespace std;

string s1, s2;

string add(string s1, string s2) {
  int t = 0, sum = 0; // t 为进位，sum 求和
  int len1 = s1.size();
  int len2 = s2.size();
  
  string rlt = "";
  char c;
  while (len1 > 0 || len2 > 0 || t > 0) {
    sum = t;
    if (len1 > 0) sum += s1[--len1] - '0';
    if (len2 > 0) sum += s2[--len2] - '0';
    t = sum / 10;
    c = sum % 10 + '0';
    rlt = c + rlt;
  }
  
  return rlt;
  
}

int main() {
  cin >> s1 >> s2;
  
  cout << add(s1, s2) << endl;
  return 0;
}