func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, k;   char arr[2 * 1000 + 5];   int cum[2 * 1000 + 5];   void read_input() {     cin >> n;     cum[0] = 0, k = 0;     for (int i = 1; i <= n; i++) {       cin >> arr[i];       arr[i + n] = arr[i];       cum[i] = cum[i - 1];       if (arr[i] ==  T )         cum[i] += 1;       else         k++;     }     for (int i = n + 1; i < n + k; i++) {       cum[i] = cum[i - 1];       if (arr[i] ==  T ) cum[i] += 1;     }   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     cerr.tie(0);     read_input();     int min_swaps = INT_MAX;     for (int i = k; i < n + k; i++) {       min_swaps = min(min_swaps, cum[i] - cum[i - k]);     }     cout << min_swaps <<   n ;     return 0;   }   