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.*;
import java.io.*;

public class gfg
{
	public static void main(String[] args)
	{
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		String mat[] = new String[n];
		for(int i=0; i<n; i++)
			mat[i] = sc.next();
		int i1=0;
		int j1=0;
		boolean exit = false;
		for(int i=0; i<n && !exit; i++)
		{
			for(int j=0; j<m && !exit; j++)
			{
				if(mat[i].charAt(j)=='B')
				{
					i1 = i;
					j1 = j;
					exit = true;
				}
			}
		}
		int i2 = 0;
		int j2 = 0;
		for(int i=i1; i<n; i++)
		{
			for(int j=j1; j<m; j++)
			{
				if(mat[i].charAt(j)=='B')
				{
					i2 = i;
					j2 = j;
				}
			}
		}
		System.out.println(((i1+i2)/2+1) + " " + ((j1+j2)/2+1));
	}      
}