#include <bits/stdc++.h>
using namespace std;
const long long mod = 1000 * 1000 * 1000 + 7;
const double pi = acos(-1.0);
const double eps = 1e-9;
const long long inf = 1e18;
int toint(string s) {
  int sm;
  stringstream ss(s);
  ss >> sm;
  return sm;
}
long long tolint(string s) {
  long long sm;
  stringstream ss(s);
  ss >> sm;
  return sm;
}
long long a, b, c, d, e, f, g, h, l, m, n, p, q, r, t, u, w, x, y, z,
    ara[100005] = {0}, arr[100005] = {0};
vector<long long> v, v2, v3;
string s[200];
int main() {
  cin.tie(0);
  cout.sync_with_stdio(0);
  cin >> n >> m;
  for (int i = 1; i <= (n); i++) cin >> s[i];
  for (int i = 1; i <= (n); i++) {
    for (int j = 0; j < (m); j++) {
      if (s[i][j] == 'B') {
        r = i, c = j + 1;
        l = 0;
        for (int k = j; k < m; k++) {
          if (s[i][k] == 'B')
            l++;
          else
            break;
        }
        cout << r + (l - 1) / 2 << " " << c + (l - 1) / 2;
        return 0;
      }
    }
  }
}
