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 MyClass {
    public static void main(String args[]) 
    {
        Scanner sc=new Scanner (System.in);
        int r=sc.nextInt();
        int c=sc.nextInt();
        char a[][]=new char[r][c];
        for(int i=0;i<r;i++)
        {
            String temp=sc.next();
            for(int j=0;j<c;j++)
            {
                a[i][j]=temp.charAt(j);
            }
        }
        
        int ri=-1;
        int rs=-1;
        int re=-1;
        for(int i=0;i<r;i++)
        {
            for(int j=0;j<c;j++)
            {
                if((a[i][j]=='B')&&(ri==-1))
                {
                    ri=i;
                    rs=j;
                    re=j;
                }
                else
                if(a[i][j]=='B')
                {
                    re=j;
                }
            }
            if(ri!=-1)
            break;
        }
      //  System.out.println(ri+" "+rs+" "+re);
        
        int len=(re-rs)+1;
        int ry=(re+rs)/2;
        int rx=ri+(len-1)/2;
        System.out.println((rx+1)+" "+(ry+1));
        
        
        
    }
}
