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
import java.util.*;

public class helloWorld 
{
	public static void main(String[] args) 
	{		
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		int m = in.nextInt();
		int l = 1000, r = 0, u = 1000, b = 0;
		
		for(int i = 0; i < n; i++ ) {
			String str = in.next();
			for(int j = 0; j < m; j++)
				if(str.charAt(j) == 'B') {
					l = Math.min(j+1, l);
					r = Math.max(j+1, r);
					u = Math.min(i+1, u);
					b = Math.max(i+1, b);
				}
		}
		
		System.out.println((u+b)/2 + " " + (l+r)/2);
		
		in.close();
	}
}



