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;
long long a, b, c, d, k, n, m, x, y, z, cnt, ans, tt, mx;
char f[1001][1001], h[1001];
vector<int> v, q, t;
string s, g, r;
int main() {
  cin >> n >> m;
  pair<int, int> p[n * m];
  for (long long i = 0; i < n; i++) {
    for (long long j = 0; j < m; j++) {
      cin >> f[i][j];
      if (f[i][j] == 'B') {
        p[a].first = i + 1;
        p[a].second = j + 1;
        a++;
      }
    }
  }
  cout << p[a / 2].first << ' ' << p[a / 2].second;
}
