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 main() {
  long long r, c;
  cin >> r >> c;
  string str[200];
  long long cnt = 0, posi = 0, posj = 0, mx = 0;
  for (long long i = 0; i < r; i++) {
    cin >> str[i];
  }
  for (long long i = 0; i < r; i++) {
    for (long long j = 0; j < c; j++) {
      if (str[i][j] == 'B') {
        cnt++;
        posi = i + 1;
        posj = j + 1;
      }
    }
    mx = max(cnt, mx);
    cnt = 0;
  }
  if (mx == 1)
    cout << posi << " " << posj << endl;
  else {
    if (mx % 2 != 0) {
      long long pi = ((mx / 2) + 1) + (posi - mx);
      long long pj = posj - (((mx / 2) + 1) - 1);
      cout << pi << " " << pj << endl;
    } else {
      long long pi = (mx / 2) + (posi - mx);
      long long pj = posj - ((mx / 2) - 1);
      cout << pi << " " << pj << endl;
    }
  }
}
