func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string s;     cin >> s;     long long int n = ((int)s[1] -  0 ) + 10 * ((int)s[3] -  0 ) +                       100 * ((int)s[4] -  0 ) + 1000 * ((int)s[2] -  0 ) +                       10000 * ((int)s[0] -  0 );     long long int result = (n * n) % 100000;     result = (result * result) % 100000;     result = (result * n) % 100000;     int digits = (int)log10(result + 1);     digits = 4 - digits;     for (int i = 0; i < digits; i++) cout <<  0 ;     cout << result;     return 0;   }   