func_code_string: #include <bits/stdc++.h>   using namespace std;   long long a, b, n, ret;   long long retr(long long x) {     long long t = 0;     while (x > 0) {       t = 10 * t + (x % 10);       x /= 10;     }     return t;   }   int main() {     int i;     cin >> a >> b;     ret = retr(b);     ret += a;     cout << ret;   }   