func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int stones, counter = 0;     string colours;     cin >> stones;     cin >> colours;     for (int i = 0; i < stones - 1; i++) {       if (colours[i] == colours[i + 1]) {         counter++;       }     }     cout << counter << endl;     return 0;   }   