#include <bits/stdc++.h>
#pragma GCC optimize("O2")
using namespace std;
const int MAX = 1e5 + 5;
const long long MAX2 = 11;
const int MOD = 1000000000 + 7;
const long long INF = 20000;
const int dr[] = {1, 0, -1, 0, 1, 1, -1, -1};
const int dc[] = {0, 1, 0, -1, 1, -1, 1, -1};
const double pi = acos(-1);
const double eps = 1e-9;
int n, m, r, c, a, b;
bool st;
char x[150][150];
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  cin >> n >> m;
  for (int i = 1; i <= n; i++)
    for (int j = 1; j <= m; j++) cin >> x[i][j];
  for (int i = 1; i <= n; i++) {
    for (int j = 1; j <= m; j++) {
      if (x[i][j] == 'B') c++, st = 1;
    }
    if (st) break;
  }
  for (int j = 1; j <= m; j++) {
    for (int i = 1; i <= n; i++) {
      if (x[i][j] == 'B' && !r) a = i, b = j;
      if (x[i][j] == 'B') r++, st = 0;
    }
    if (!st) break;
  }
  cout << a + r / 2 << " " << b + c / 2;
  return 0;
}
