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 QuesA {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();		
		int m = in.nextInt();
		int i,j;
		String s[] = new String [n];
		for(i=0;i<n;i++) {
			s[i] = in.next();
			
		}
		int indy = -1;
		int indxe = -1;
		int indx = -1;
		for(i=0;i<n;i++) {
			indx = s[i].indexOf('B');
			
			if(indx>=0) {
				indy = i;
				
				indxe = s[i].lastIndexOf('B');
				break;
			}
		}
		//System.out.println(indx+" "+indy+" "+indxe);
		int x = (indx + indxe)/2;
		int y = (2*indy +(indxe-indx))/2;
		System.out.println((y+1)+" "+(x+1));
	}

}
