#include <bits/stdc++.h>
using namespace std;
const int inf = 0x3f3f3f3f;
const int maxn = 115 + 5;
char s[maxn][maxn];
int main() {
  int n, m;
  while (~scanf("%d%d", &n, &m)) {
    int mini = inf, maxi = 0, minj = inf, maxj = 0;
    getchar();
    for (int i = 1; i <= n; i++) {
      for (int j = 1; j <= m; j++) {
        scanf("%c", &s[i][j]);
        if (s[i][j] == 'B') {
          mini = min(mini, i);
          minj = min(minj, j);
          maxi = max(maxi, i);
          maxj = max(maxj, j);
        }
      }
      getchar();
    }
    printf("%d %d\n", (mini + maxi) / 2, (minj + maxj) / 2);
  }
  return 0;
}
