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 scn = new Scanner(System.in);
          int n = scn.nextInt();
          int m = scn.nextInt();
          String[] arr=new String[n+1];
          for(int i=0;i<n;i++) {
        	  arr[i]=scn.next();
          }
          int i=0,j=0,flag=0,count=0,J = 0;
          for(i=0;i<n;i++) {
        	  String str = arr[i];
        	  for(j=0;j<m;j++) {
        		  if(str.charAt(j)=='B'){
        			  if(flag==0) {
        				  J=j;
        			  }
        			  flag=1;
        			  count++;
        		  }
        	  }
        	  if(flag==1) {
        		  break;
        	  }
          }
          
//          System.out.println(J);
//          System.out.println(count);
          int ansi = i+1 + (int)(count/2);
          int ansj = J+1 + (int)(count/2);
          System.out.println(ansi+" "+ansj);
	}

}
