#include <bits/stdc++.h>
#pragma comment(linker, "/STACK:256000000")
const long long INF = 1e18 + 1;
using namespace std;
signed main() {
  std::ios::sync_with_stdio(false);
  long long n, m;
  cin >> n >> m;
  array<long long, 2> f = {-1, -1}, l;
  for (long long i = 0; i < (n); i++) {
    for (long long j = (0); j < (m); j++) {
      char c;
      cin >> c;
      if (c == 'B') {
        if (f[0] == -1) f = {i, j};
        l = {i, j};
      }
    }
  }
  cout << (f[0] + l[0]) / 2 + 1 << " " << (f[1] + l[1]) / 2 + 1 << endl;
  return 0;
}
