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 ProblemA {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();
        int m = scanner.nextInt();
        int w = 0;
        int x = -1;
        scanner.nextLine();
        for (int i = 0; i < n; i++) {
            String s = scanner.nextLine();
            for (int j = 0; j < m; ++j) {
                if (s.charAt(j) == 'B') {
                    w++;
                    if (x < 0) {
                        x = j;
                    }
                }
            }
            if (w > 0) {
                System.out.print(i + 1 + w / 2);
                System.out.print(" ");
                System.out.print(x + 1 + w / 2);
                break;
            }
        }
    }
}
