#include <bits/stdc++.h>
using namespace std;
const int mod = 1e9 + 7;
const int inf = 0x3f3f3f3f;
const long long INF = 0x3f3f3f3f3f3f3f3f;
const int maxn = 2e6 + 50;
char ch[250][250];
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int n, m;
  cin >> n >> m;
  for (int i = 1; i <= n; ++i) cin >> ch[i] + 1;
  int x1 = -1, y1 = -1, x2 = -1, y2 = -1;
  for (int i = 1; i <= n and x1 < 0; ++i) {
    for (int j = 1; j <= m and x1 < 0; ++j)
      if (ch[i][j] == 'B') {
        x1 = i, y1 = j;
      }
  }
  for (int i = n; i and x2 < 0; --i) {
    for (int j = m; j and x2 < 0; --j)
      if (ch[i][j] == 'B') {
        x2 = i, y2 = j;
      }
  }
  cout << (x1 + x2) / 2 << " " << (y1 + y2) / 2;
  return 0;
}
