#include <bits/stdc++.h>
using namespace std;
template <typename Arg1>
void __f(const char* name, Arg1&& arg1) {
  cerr << name << " : " << arg1 << endl;
}
template <typename Arg1, typename... Args>
void __f(const char* names, Arg1&& arg1, Args&&... args) {
  const char* comma = strchr(names + 1, ',');
  cerr.write(names, comma - names) << " : " << arg1 << " | ";
  __f(comma + 1, args...);
}
int main() {
  int n, m;
  cin >> n >> m;
  vector<vector<char> > table(n + 1, vector<char>(m + 1));
  int row = 0, col = 0, count = 0;
  for (int i = 1; i <= n; i++) {
    string tmp;
    cin >> tmp;
    for (int j = 0; j < tmp.length(); j++) {
      table[i][j + 1] = tmp[j];
    }
  }
  for (int i = 1; i <= n; i++) {
    for (int j = 1; j <= m; j++) {
      if (table[i][j] == 'B') {
        count++;
        row += i;
        col += j;
      }
    }
  }
  row /= count;
  col /= count;
  cout << row << " " << col << endl;
  return 0;
}
