func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     long long int n, t;     cin >> n >> t;     string s;     cin >> s;     for (long long int i = 0; i < t; i++) {       for (long long int j = 0; j < n - 1; j++) {         if (s[j] ==  B  && s[j + 1] ==  G ) {           s[j] =  G ;           s[j + 1] =  B ;           j = j + 1;         }       }     }     for (long long int i = 0; i < n; i++) {       cout << s[i];     }     cout << endl;     return 0;   }   