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.Scanner;

public class Main{

	public static void main(String[] args) {
		Scanner scanner=new Scanner(System.in);
		String s[] = scanner.nextLine().split(" ");
		int n = Integer.parseInt(s[0]);
		int m = Integer.parseInt(s[1]);
		int tag = 0;
		int sx = 0,sy = 0,ex=0,ey=0;
		char arr[][] = new char[n][m];
		for(int i=0;i<n;i++) {
			String hang = scanner.nextLine();
			for(int j=0;j<m;j++) {
				if(hang.charAt(j) == 'B') {
					if(tag ==0) {
						sx = i;
						sy = j;
					}
					tag =1;
					ex = i;
					ey = j;
					
				}
			}
		}
		
		//System.out.println(sx +" "+sy);
		//System.out.println(ex +" "+ey);
		System.out.println(((sx +ex)/2+1)+" "+((sy +ey)/2+1));
	}

}

	   		  									      		  		 	