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;
int32_t main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  ;
  long long m, n;
  cin >> m >> n;
  char arr[m][n];
  vector<pair<long long, long long>> v;
  for (long long i = 0; i < m; ++i) {
    for (long long j = 0; j < n; ++j) {
      cin >> arr[i][j];
      if (arr[i][j] == 'B') v.push_back(make_pair(i, j));
    }
  }
  long long x1 = v[0].first;
  long long y1 = v[0].second;
  long long x2 = v[v.size() - 1].first;
  long long y2 = v[v.size() - 1].second;
  cout << (x1 + x2) / 2 + 1 << " " << (y1 + y2) / 2 + 1;
  return 0;
}
