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 Find {
public static void main(String[] args) {
	Scanner scanner = new Scanner (System.in);
	int n = scanner.nextInt(),m = scanner.nextInt(),i1=0,i2=0,j1=0,j2=0;
	char [][] a;a=new char [n][m];
	for (int i=0;i<n;i++) {
		String s = scanner.next();
		for (int j=0;j<m;j++) {
			a[i][j]=s.charAt(j);
			if (s.charAt(j)=='B') {i2=i;j2=j;}
		}
	}
	for (int i=0;i<n;i++) {
		boolean d = false;
		for (int j=0;j<m;j++) {
			if (a[i][j]=='B') {i1=i;j1=j;d=true;break;}
		}
		if (d==true) break;
	}
	System.out.println(((i1+i2)/2+1) + " " + ((j1+j2)/2+1));
	scanner.close(); }}