#include <bits/stdc++.h>
using namespace std;
const int MAXN = 100000;
const int INF = 1e9 + 5;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int r1 = INF, r2 = -1, c1 = INF, c2 = -1, N, M;
  cin >> N >> M;
  for (int i = 1; i <= N; i++) {
    for (int j = 1; j <= M; j++) {
      char c;
      cin >> c;
      if (c == 'B') {
        r1 = min(r1, i);
        r2 = max(r2, i);
        c1 = min(c1, j);
        c2 = max(c2, j);
      }
    }
  }
  cout << r1 + (r2 - r1 + 1) / 2 << " " << c1 + (c2 - c1 + 1) / 2 << "\n";
}
