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 problemSolving {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int m = sc.nextInt();
		String[] map = new String[120];
		for(int i = 0;i<n;i++) {
			map[i] = sc.next();
		}
		
		int fr=-1,fc=-1,lr=-1,lc=1;
		
		for(int i=0;i<n;i++) {
			for(int j = 0;j<m;j++) {
				if(map[i].charAt(j) == 'B') {
					if(fr == -1) {
						fr = i;
						fc = j;
					}
					else {
						lr = i;
						lc = j;
					}
				}
			}
		}
		
		if(lr == -1) {
			lr = fr;
			lc = fc;
		}
		
		int ci = fr + (lr - fr)/2 + 1;
		int cj = fc + (lc - fc)/2 + 1;
		System.out.println(ci + " " + cj);
		
	}

}