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.*;

public class NewClass4 {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int n=sc.nextInt();
        int m=sc.nextInt();
        String[] s=new String[n];
        for(int i=0;i<n;i++){
            s[i]=sc.next();
        }
        int count=0;
        for(int i=0;i<n;i++){
            for(int j=0;j<m;j++){
                if(s[i].charAt(j)=='B'){
                    count++;
                }
            }
        }
        //System.out.println("count="+count);
        count/=2;
        count+=1;
        int count1=0;
        int r1=-1,c1=-1;
        for(int i=0;i<n;i++){
            for(int j=0;j<m;j++){
                if(s[i].charAt(j)=='B'){
                    count1++;
                    if(count1==count){
                        r1=i+1;
                        c1=j+1;
                        break;
                    }
                }
            }
        }
        System.out.println(r1+" "+c1);
    } 
}