func_code_string: #include <bits/stdc++.h>   using namespace std;   const int INF = 1 << 30;   const double EPS = 1e-7;   int main() {     ios::sync_with_stdio(false);     int n;     cin >> n;     string s;     cin >> s;     int ans = 0;     for (int i = n; i < (int)s.length(); i += n) {       bool equal = true;       for (int j = 1; j <= 3; j++)         if (s[i - j] != s[i - 1]) equal = false;       if (equal) ans++;     }     cout << ans << endl;     return 0;   }   