func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int N;     cin >> N;     string s;     cin >> s;     int current = N;     int count = 0;     while (true) {       if (current >= s.size()) break;       set<char> vs;       vs.insert(s[current - 1]);       vs.insert(s[current - 2]);       vs.insert(s[current - 3]);       if (vs.size() == 1) count++;       current += N;     }     cout << count;   }   