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 probA{
	public static void main(String[] args){
		Scanner s = new Scanner(System.in);
		int n = s.nextInt();
		int m = s.nextInt();
		s.nextLine();
		int index1=0;
		int index2=0;
		int count=0;
		int[][] a = new int[n][m];
		for (int i=0;i<n;i++){
			String str = s.nextLine();
			int temp=0;
			for (int j=0;j<str.length();j++){
				if(str.charAt(j)=='B'){
					index1=j+1;
					index2=i+1;
					count++;
				}
			}
			if(count>0){
				break;
			}
		}
		index2 = index2 + count/2;
		index1 = index1 - count/2;
		System.out.println(String.valueOf(index2)+" "+String.valueOf(index1));
	}
}