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() {
  int n, m;
  char s[200][200];
  scanf("%d%d", &n, &m);
  for (int i = 0; i < n; i++) scanf("%s", s[i]);
  int ans, sum;
  ans = 0, sum = 0;
  for (int i = 0; i < n; i++)
    for (int j = 0; j < m; j++)
      if (s[i][j] == 'B') sum++;
  int ix, iy;
  int x = sum / 2 + 1;
  for (int i = 0; i < n; i++) {
    if (ans == x) break;
    for (int j = 0; j < m; j++) {
      if (s[i][j] == 'B') ++ans;
      if (ans == x) {
        ix = i;
        iy = j;
        break;
      }
    }
  }
  printf("%d %d", ix + 1, iy + 1);
}
