#include <bits/stdc++.h>
using namespace std;
int n, m, r1, c1, r2, c2;
char a[120][120];
int main() {
  cin >> n >> m;
  bool sign = true;
  for (int i = 1; i <= n; i++)
    for (int j = 1; j <= m; j++) cin >> a[i][j];
  for (int i = 1; i <= n; i++)
    for (int j = 1; j <= m; j++)
      if (a[i][j] == 'B') {
        if (sign) {
          r1 = i;
          c1 = j;
          sign = false;
        }
        r2 = i;
        c2 = j;
      }
  cout << (r1 + r2) / 2 << " " << (c1 + c2) / 2;
  return 0;
}
