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;
const long long int mod = 1e9 + 7;
const int MX = 120;
char grid[MX][MX];
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int n, m;
  cin >> n >> m;
  for (int i = 0; i < n; i++)
    for (int j = 0; j < m; j++) cin >> grid[i][j];
  int id = -1;
  int dist;
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < m; j++) {
      if (grid[i][j] == 'B') {
        bool ok = 0;
        int ii = -1;
        for (int st = j; st < m; st++) {
          if (grid[i][st] == 'W') {
            ii = st;
            ok = 1;
            break;
          }
        }
        if (!ok) {
          ii = m - 1;
          dist = ii - j + 1;
        } else
          dist = ii - j;
        if (dist & 1) {
          int hf = dist / 2;
          cout << i + hf + 1 << ' ' << j + hf + 1 << '\n';
          return 0;
        }
      }
    }
  }
  return 0;
}
