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 Main {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
       int n =scan.nextInt();
       int m=scan.nextInt();
       String[] s = new String[n];
        for (int i = 0; i <n ; i++) {
            s[i]=scan.next();
        }
        int x1=-1;
        int y1=-1;
        int x2=-1;
        int y2=-1;
        for (int i = 0; i <n ; i++) {
            for (int j = 0; j <m ; j++) {
                if (s[i].charAt(j)=='B'){
                    x1=i+1;
                    y1=j+1;
                    break;
                }
            }
            if (x1==i+1){
                break;
            }
        }
        for (int i = 0; i <n ; i++) {
            for (int j = 0; j <m ; j++) {
                if (s[i].charAt(j)=='B'){
                    x2=i+1;
                    y2=j+1;
                }
            }
        }
        System.out.println((x1+x2)/2);
        System.out.println((y1+y2)/2);
    }
}
