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 ASeaBattle {

	public static void main(String[] args) {
		Scanner sc=new Scanner (System.in);
		int a=sc.nextInt();
		int b=sc.nextInt();
		char[][] x= new char[a][b];
		for(int i=0;i<a;i++) {
			x[i] =sc.next().toCharArray();
		}
		int cnt=0,cnt1=0;
		boolean m=false;
		for(int i=0;i<a;i++) {
			for(int j=0;j<b;j++) {
				if(x[i][j]=='B') {
					cnt=i;
					 cnt1=j;
					 m=true;
					break;
				}

			}
			if(m) {
				break;
			}
		}
         
		int cnt2=0;
		for(int i=0;i<a;i++) {
			for(int j=0;j<b;j++) {
				if(x[i][j]=='B') {
                       cnt2++;
				}
			}
			if(cnt2>0) {
				break;
			}
		}
		int p=cnt2/2;
		
		System.out.println(cnt+p+1+" "+(cnt1+p+1));
          sc.close();

	}

}
