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.io.IOException;
import java.util.Scanner;

public class Main {

    public static void main(String[] args) throws IOException {
	Scanner in = new Scanner(System.in);
	int n = in.nextInt(), m = in.nextInt();
	int[] arr = new int[n];
	int count = 0, idx = 0, idx1 = 0;
	boolean f = false;
	for (int i = 0; i < n; i++) {
	    String s = in.next();
	    for (int j = 0; j < s.length(); j++) {
		if (s.charAt(j) == 'B') {
		    count++;
		    idx1 = j;
		    f = true;
		}
	    }
	    if (f) {
		System.out.println((1 + i + count / 2) + " " + (1 + idx1 - count / 2));
		return;
	    }
	}
    }

}
