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 in = new Scanner(System.in);
        int n = in.nextInt(), m = in.nextInt(),i=0,j=0;
        char[][] a = new char[n+1][m+1];
        for( i=1;i<=n;i++)
            a[i] = ("0"+in.next()).toCharArray();
        int ik = i,jk=j;
        for( i=1;i<=n;i++)
            for( j=1;j<=m;j++)
                if(a[i][j]=='B'){
                    ik = i;
                    jk=j;
                    i = n;
                    j = m;
                }
        
        i = ik;
        j= jk;
        
        while(i<=n && a[i][jk]=='B'){
            i++;
        }
        while(j<=m && a[ik][j]=='B'){
            j++;
        }
        //System.out.println(i+" "+j);
        System.out.println((i+ik-1)/2+" "+(j+jk-1)/2);
    }

}