#include <bits/stdc++.h>
int main() {
  char ch[116];
  int i, j = 1, k, m, n, c, s, e;
  scanf("%d %d ", &n, &m);
  while (j <= n) {
    scanf("%s", ch);
    for (i = 0; ch[i] != '\0'; i++) {
      if (ch[i] == 'B') {
        s = i;
        while (ch[++i] == 'B')
          ;
        e = i - 1;
        c = (e - s + 1) / 2;
        printf("%d %d", j + c, s + 1 + c);
        return 0;
      }
    }
    j++;
  }
}
