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>
#pragma comment(linker, "/STACK:256000000")
const long long INF = 1e18 + 1;
using namespace std;
signed main() {
  std::ios::sync_with_stdio(false);
  long long n, m;
  cin >> n >> m;
  array<long long, 2> f = {-1, -1}, l;
  for (long long i = 0; i < (n); i++) {
    for (long long j = (0); j < (m); j++) {
      char c;
      cin >> c;
      if (c == 'B') {
        if (f[0] == -1) f = {i, j};
        l = {i, j};
      }
    }
  }
  cout << (f[0] + l[0]) / 2 + 1 << " " << (f[1] + l[1]) / 2 + 1 << endl;
  return 0;
}
