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.PrintWriter;
import java.util.Scanner;

public class Primary {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        PrintWriter out = new PrintWriter(System.out);
        int n = in.nextInt();
        int m = in.nextInt();
        int cn = -1;
        int cm = -1;
        String[] strings = new String[n];
        for (int i = 0; i < n; i++) {
            strings[i] = in.next();
        }
        int xcount = 0;
        int ycount = 0;
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                if (strings[i].charAt(j) == 'B') {
                    cn = i;
                    cm = j;
                    for (int x = j + 1; x < m; x++) {
                        if (strings[i].charAt(x) == 'B') {
                            xcount++;
                        }
                    }

                    for (int y = i + 1; y < n; y++) {
                        if (strings[y].charAt(j) == 'B') {
                            ycount++;
                        }
                    }
                    cn = cn + (ycount / 2) + 1;
                    cm = cm + (xcount / 2) + 1;
                    out.println(cn + " " + cm);

                    out.close();
                    return;
                }
            }
        }
        out.close();

    }
}