func_code_string: #include <bits/stdc++.h>   using namespace std;   int size(long long a) {     int c = 0;     while (a != 0) {       c++;       a /= 10;     }     return c;   }   int main() {     long long a, b, c;     cin >> a >> b;     long long s = size(b), ns = 1;     for (int i = 1; i <= s; i++) ns *= 10;     s = ns;     while (b != 0) {       long long f = b % 10;       b /= 10;       s /= 10;       a += s * f;     }     cout << a;     return 0;   }   