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.ArrayList;
import java.util.Scanner;

public class pre116
{
    public static void main(String args[])
    {
        Scanner obj = new Scanner(System.in);
        int n = obj.nextInt(),m = obj.nextInt();String arr[] = new String[n];
        ArrayList<Integer> x = new ArrayList<>(),y = new ArrayList<>();
        for(int i=0;i<n;i++)
        {
            arr[i] = new String();
            arr[i] = obj.next();
            for(int j=0;j<m;j++)
            {
                if(arr[i].charAt(j)=='B')
                {
                    x.add(i+1);
                    y.add(j+1);
                }
            }
        }
        int length = (x.get(0)+x.get(x.size()-1))/2,hight = (y.get(0)+y.get(y.size()-1))/2;
        System.out.println(length+" "+hight);
    }
}
