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 scale(char c) {
  if (c <= '9' && c >= '0') return c - '0';
  if (c <= 'Z' && c >= 'A') return c - 'A' + 1;
  return c - 'a' + 1;
}
int main() {
  int n, m;
  char c;
  cin >> n >> m;
  vector<pair<int, int> > v;
  for (int i = 1; i <= n; ++i)
    for (int j = 1; j <= m; ++j) {
      cin >> c;
      if (c == 'B') v.push_back({i, j});
    }
  int sz = sqrt(((int)(v).size()));
  int l = v[0].first + sz / 2;
  int r = v[0].second + sz / 2;
  cout << l << " " << r << '\n';
  return 0;
}
