#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, m, a = 0, b, c, d, i, j;
  char s[116][116];
  cin >> n >> m;
  for (i = 1; i <= n; i++) {
    for (j = 1; j <= m; j++) {
      cin >> s[i][j];
    }
  }
  for (i = 1; i <= n && a == 0; i++) {
    for (j = 1; j <= m; j++) {
      if (s[i][j] == 'B') {
        a = i;
        break;
      }
    }
  }
  for (i = a, j = 1; j <= m; j++) {
    if (s[i][j] == 'B') {
      b = j;
      break;
    }
  }
  for (i = a, j = m; j > 0; j--) {
    if (s[i][j] == 'B') {
      c = j;
      break;
    }
  }
  d = (c - b) / 2;
  cout << a + d << " " << c - d;
}
