#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(0);
  long long t = 1;
  while (t--) {
    int n;
    int m;
    cin >> n >> m;
    string s[n];
    for (int i = 0; i < n; i++) cin >> s[i];
    int one, two;
    bool flag = 1;
    for (int i = 0; i < n && flag; i++) {
      for (int j = 0; j < m && flag; j++) {
        if (s[i][j] == 'B') {
          int p = j;
          while (s[i][p] == 'B' && p < m) p++;
          one = ((p + j) >> 1);
          flag = 0;
        }
      }
    }
    flag = 1;
    for (int j = 0; j < m && flag; j++) {
      for (int i = 0; i < n && flag; i++) {
        if (s[i][j] == 'B') {
          int p = i;
          while (s[p][j] == 'B' && p < n) p++;
          two = ((p + i) >> 1);
          flag = 0;
        }
      }
    }
    cout << two + 1 << " " << one + 1 << endl;
  }
  return 0;
}
