#include <bits/stdc++.h>
using namespace std;
int main() {
  int r, c;
  cin >> r >> c;
  char mat[r + 5][c + 5];
  for (int i = 1; i <= r; i++) {
    for (int j = 1; j <= c; j++) {
      cin >> mat[i][j];
    }
  }
  for (int i = 1; i <= r; i++) {
    for (int j = 1; j <= c; j++) {
      if (mat[i][j] == 'B') {
        int rw = 0, cl = 0;
        for (int k = j; k <= c; k++) {
          if (mat[i][k] == 'B')
            cl++;
          else
            break;
        }
        for (int k = i; k <= r; k++) {
          if (mat[k][j] == 'B')
            rw++;
          else
            break;
        }
        cout << i + rw / 2 << " " << j + cl / 2 << endl;
        return 0;
      }
    }
  }
  return 0;
}
