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.io.*;
import java.util.*;

public class Contest {

    public static void main(String[] args) throws IOException {
    	Scanner sc = new Scanner(System.in);
    	int n= sc.nextInt();
    	int m = sc.nextInt();
    	sc.nextLine();
    	int l=0;
    	int x = 0;
    	int y = -1;
    	for (int i=1; i<=n; i++) {
    		String s = sc.nextLine();
    		for (int j=0; j<m; j++) {
    			if (s.charAt(j)=='B') {
    				if (y==-1) y=j+1;
    				l++;
    			}
    		}
    		if (l>0) {
    			x= i;
    			break;
    		}
    	}
    	System.out.println((x+l/2)+" "+(y+l/2));
    }
}