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 MainClass {
	   
	 public static void main(String[] args) { 
		 FastReader in = new FastReader();
		
		 int n = in.nextInt();
		 int m = in.nextInt();
		 
		 boolean mat[][] = new boolean[n][m];
		 
		 for (int i=0; i<n; i++) {
			 String s = in.next();
			 
			 for (int j=0; j<m; j++) {
				 if(s.charAt(j)=='B') {
					 mat[i][j] = true;
				 }else
					 mat[i][j] = false;
			 }
		 }
		 
		 boolean row = false,col = false;
		 int a=0,b=0;
		 int t = 0;
		 int count = 0;
		 
		 for (int i=0; i<n; i++) {
			 
			 for (int j=0; j<m; j++) {
				 
				 if(mat[i][j]) {
					 count++;
				 }
			 }
			 
			 if(count>0) {
				 row = true;
				 a = i+count/2;
				 break;
			 }
			 
		 }
		 
		 for (int i=0; i<n; i++) {
			 for (int j=0; j<m; j++) {
				 if(mat[i][j]) {
					 b = j+count/2;
					 break;
				 }
			 }
		 }
		 a++;
		 b++;
		 System.out.println(a+" "+b);
		 
		 
		 

	 } 
	 
	
}









class FastReader
{
    BufferedReader br;
    StringTokenizer st;

    public FastReader()
    {
        br = new BufferedReader(new
                 InputStreamReader(System.in));
    }

    String next()
    {
        while (st == null || !st.hasMoreElements())
        {
            try
            {
                st = new StringTokenizer(br.readLine());
            }
            catch (IOException  e)
            {
                e.printStackTrace();
            }
        }
        return st.nextToken();
    }

    int nextInt()
    {
        return Integer.parseInt(next());
    }

    long nextLong()
    {
        return Long.parseLong(next());
    }

    double nextDouble()
    {
        return Double.parseDouble(next());
    }

    String nextLine()
    {
        String str = "";
        try
        {
            str = br.readLine();
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
        return str;
    }
}


