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>
using namespace std;
int n, p, m;
string t[200];
int main() {
  cin >> n >> m;
  for (int i = 0; i < n; i++) {
    cin >> t[i];
  }
  bool test = false;
  int a1, b1, a2, b2;
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < m; j++) {
      if (t[i][j] == 'B') {
        if (!test) {
          a1 = i;
          b1 = j;
          test = true;
        }
        a2 = i;
        b2 = j;
      }
    }
  }
  int res1 = (a1 + a2) / 2;
  int res2 = (b1 + b2) / 2;
  cout << res1 + 1 << " " << res2 + 1;
  return 0;
}
