Consider a table of size n × m, initially fully white. Rows are numbered 1 through n from top to bottom, columns 1 through m from left to right. Some square inside the table with odd side length was painted black. Find the center of this square.

Input

The first line contains two integers n and m (1 ≤ n, m ≤ 115) — the number of rows and the number of columns in the table.

The i-th of the next n lines contains a string of m characters s_{i1} s_{i2} … s_{im} (s_{ij} is 'W' for white cells and 'B' for black cells), describing the i-th row of the table.

Output

Output two integers r and c (1 ≤ r ≤ n, 1 ≤ c ≤ m) separated by a space — the row and column numbers of the center of the black square.

Examples

Input

5 6
WWBBBW
WWBBBW
WWBBBW
WWWWWW
WWWWWW


Output

2 4


Input

3 3
WWW
BWW
WWW


Output

2 1
#include <bits/stdc++.h>
int main() {
  char a[120][120];
  int x = 0, y = 0, p = 0, q = 0;
  int i, j, n, m;
  scanf("%d %d", &m, &n);
  for (i = 1; i <= m; i++) {
    for (j = 1; j <= n; j++) {
      scanf(" %c", &a[i][j]);
    }
  }
  for (i = 1; i <= m; i++) {
    for (j = 1; j <= n; j++) {
      if (a[i][j] == 'B') {
        x = i;
        y = j;
      }
    }
  }
  for (i = m; i >= 1; i--) {
    for (j = n; j >= 1; j--) {
      if (a[i][j] == 'B') {
        p = i;
        q = j;
      }
    }
  }
  printf("%d %d", ((p + x) / 2), ((q + y) / 2));
}
