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;

/*
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/**
 *
 * @author anhnth37
 */
public class A_1028 {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int n = input.nextInt();
        int m = input.nextInt();
        int firstPlaceX = -1;
        int firstPlaceY = -1;
        int sizeMatrix = 0;
        for (int i = 0; i < n; i++) {
            String s = input.next();
            if (sizeMatrix == 0) {
                for (int j = 0; j < m; j++) {
                    if (s.charAt(j) == 'B') {
                        if (firstPlaceX == -1 && firstPlaceY == -1) {
                            firstPlaceX = i;
                            firstPlaceY = j;
                        }

                        sizeMatrix++;
                    }
                }
            }
        }
        

        System.out.println((sizeMatrix / 2 + firstPlaceX + 1) + " " + (sizeMatrix / 2 + firstPlaceY + 1));
    }
}
