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.*;
import java.io.*;




public class rec_NestedLoop {

    public static void main(String args[] ) throws Exception {

        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        StringTokenizer st1 = new StringTokenizer(br.readLine());

        int n = Integer.parseInt(st1.nextToken());
        int m = Integer.parseInt(st1.nextToken());

        boolean flag = false;
        boolean flagcn = false;

        int x = 1;
        int y = 1;

        int cnt = 0;

        for(int i = 0 ; i < n ; i++)
        {
            String ss = br.readLine();

            for(int j = 0 ; j < ss.length() ; j++)
            {
                if(ss.charAt(j) == 'B' && flag == false)
                {
                    x = i;
                    y = j;

                    flag = true;

                }
                if(ss.charAt(j) == 'B' && flagcn == false)
                    cnt++;
            }

            if(cnt > 0)
                flagcn = true;

        }
    
        x += cnt/2 + 1;
        y += cnt/2 + 1;

        System.out.println(x + " " + y);


    }
}