func_code_string: #include <bits/stdc++.h>   using namespace std;   int su(int n) {     int r, sum = 0;     while (n != 0) {       r = n % 10;       sum = sum + r;       n = n / 10;     }     return sum;   }   int main() {     int n;     cin >> n;     int k = n;     int i = 0;     while (i != 10) {       int d = su(k + i);       if (d % 4 == 0) {         cout << k + i << endl;         break;       }       i++;     }   }   