func_code_string: #include <bits/stdc++.h>   using namespace std;   string s;   int n, m, ans = 0;   int main() {     cin >> n >> m;     while (n--) {       cin >> s;     }     int flag = 0;     for (int i = 0; i < s.size(); ++i) {       if (s[i] ==  B ) {         flag = 1;       } else if (flag) {         flag = 0;         ans++;       }     }     cout << ans + flag <<   n ;     return 0;   }   