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.Scanner;

public class Main {
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);
        
        int n = input.nextInt();
        int m = input.nextInt();
        
        String[] A = new String[n];
        
        int flag = 0;
        int indexi1=0, indexj1=0;
        int indexi2=0, indexj2=0;
        
        for(int i = 0; i<n; i++){
            A[i] = input.next();
            
            for(int j = 0; j<m; j++){
                
                if(A[i].charAt(j) == 'B'){
                    if(flag==0){
                        indexi1 = i;
                        indexj1 = j;
                        flag++;
                    }
                    
                    indexi2 = i;
                    indexj2 = j;
                }
            }
        }
        
        int a = (int)(Math.rint((indexi1+indexi2)/2))+1;
        int b = (int)(Math.rint((indexj1+indexj2)/2))+1;
        
        System.out.println(a+" "+b);
    }
}
