func_code_string: #include <bits/stdc++.h>   using namespace std;   const int mod = 1000000007;   int cnt[4];   int main() {     int n;     scanf( %d , &n);     getchar();     for (int i = 0; i < n; ++i) {       char ch = getchar();       if (ch ==  A ) {         ++cnt[0];       } else if (ch ==  C ) {         ++cnt[1];       } else if (ch ==  G ) {         ++cnt[2];       } else if (ch ==  T ) {         ++cnt[3];       }     }     int mx = *max_element(cnt, cnt + 4);     int nMax = count(cnt, cnt + 4, mx);     long long ans = 1;     for (int i = 0; i < n; ++i) {       ans = (ans * nMax) % mod;     }     cout << ans << endl;   }   