func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long INF = (long long)1 << 61;   int main() {     long long n, m;     cin >> n >> m;     pair<long long, long long> first, last;     bool was = false;     vector<vector<char>> v(n, vector<char>(m));     for (int i = 0; i < n; ++i) {       for (int j = 0; j < m; ++j) {         cin >> v[i][j];         if (v[i][j] ==  B  && !was) {           first = {i, j};           was = true;         }         if (v[i][j] ==  B ) {           last = {i, j};         }       }     }     cout << (first.first + last.first) / 2 + 1 <<              << (first.second + last.second) / 2 + 1;     return 0;   }   