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.Arrays;
import java.util.Scanner;

/**
 *
 * @author Hodaifa Quraini
 */
public class JavaApplication4 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int r = in.nextInt();
        int c = in.nextInt();
        char arr[][] = new char[r][c];
        int count = 0;
        int indexR = 0;
        int indexC = 0;
        in.nextLine();
        for (int i = 0; i < r; i++) {
            String st = in.nextLine();
            for (int j = 0; j < c; j++) {
                arr[i][j] = st.charAt(j);
            }
        }
        for (int i = 0; i < r; i++) {
            for (int j = 0; j < c; j++) {
                if (arr[i][j] == 'B') {
                    count++;
                    if (count == 1) {
                        indexR = i + 1;
                        indexC = j + 1;
                    }

                }
            }
            if (count > 0) {
                break;
            }
        }
     

        System.out.println((indexR + (count / 2)) + " " + (indexC + (count / 2)));

    }

}
