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 code2
{
	public static void main(String[] args) {
		Scanner ob=new Scanner(System.in);
		int n=ob.nextInt();
		int m=ob.nextInt();
		char[][] a=new char[n][m];
		int k=0,l=0,p=0;int i,j;int flag=0;int m1=0;
		for(i=0;i<n;i++)
		{String s2=ob.next();
			for(j=0;j<m;j++)
			{
				a[i][j]=s2.charAt(j);
				if(a[i][j]=='B')
				{
					if(flag==0)
					{
						flag=1;
						k=i+1;p=j+1;
					}
				l=i+1;m1=j+1;
				}
			}}        
			int g=(k+l)/2;
		int h=(p+m1)/2;
		System.out.println(g+" "+h);
	}
}
