func_code_string: #include <bits/stdc++.h>   using namespace std;   char ara[100005];   map<int, int> mp;   int main() {     int t, test;     long long a, b, c, n;     char ch;     double d;     gets(ara);     t = strlen(ara);     int aa = ara[t - 1] -  0 ;     int bb = ara[t - 2] -  0 ;     aa += (bb * 10);     if (aa % 4 == 0) {       cout <<  4 n ;     } else {       cout <<  0 n ;     }     return 0;   }   