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 Main {
	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int a=sc.nextInt(),b=sc.nextInt();
		int[][] x=new int[a][b];
		int max=0;
		int e=0,r=0;
		boolean y=true;
		for(int i=0;i<a;i++) {
			String s=sc.next();
			int t=0;
			for(int j=0;j<b;j++) {
				x[i][j]=s.charAt(j);
				if(x[i][j]=='B') {
					t++;
					if(y) {
						e=i;
						r=j;
						y=false;
					}
				}
			}
			if(t>0)
				max=t;
		}
		max=max/2+1;
		e+=max;
		r+=max;
		System.out.print(e+" "+r);
		
	}
} 