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 FindSquare {


    public static void main(String[] args) {

        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int m = in.nextInt();
        char[][] a = new char[n][m];

        for (int i = 0; i < n; i++) {
            String line = in.next();
            for (int j = 0; j < line.length(); j++) {
                a[i][j] = line.charAt(j);
            }
        }
        int r1 = -1;
        int c1 = -1;
        boolean f1 = false;
        int l = 0;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                if (a[i][j] == 'B') {
                    l++;
                    if (!f1) {
                        r1 = i;
                        c1 = j;
                        f1 = true;
                    }
                }
            }
            if(l>0){
                break;
            }
        }

        int d = l / 2;
        System.out.println(r1+d+1 + " "+ (c1+d+1));
    
    }
}