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;
import java.util.ArrayList;
public class Main {
    public static class black{
        int row;
        int column;
        black(){
            row=column=0;
        }
        black(int a, int j){
            this.row = a;
            this.column = j;
        }
    }
    public static void main(String[] args) {
	// write your code here
        Scanner in = new Scanner(System.in);
        int count = 0;
        ArrayList<black> blackSquare = new ArrayList<>();
        int n,m;
        n = in.nextInt();
        m = in.nextInt();
        char[][] square = new char[n][m];
        for (int i = 0; i < n;i++ ){
            int j = 0;
            String temp = in.next();
            while (j < m){
                square[i][j] = temp.charAt(j);
                if(square[i][j] == 'B'){
                    blackSquare.add(new black(i,j));
                }
                j++;
            }
        }
        int a = blackSquare.get(blackSquare.size()/2).column+1;
        int b = blackSquare.get(blackSquare.size()/2).row+1;
        System.out.println(b + " " + a);
    }
}