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.*;
import java.io.*;

public class A{

	
	
	public static void main(String[] args) throws IOException {
		Scanner sc = new Scanner(System.in);
		PrintWriter out = new PrintWriter(System.out);
		int n=sc.nextInt(),m=sc.nextInt();
		char [][]s=new char [n][m];
		int black=0;
		for(int i=0;i<n;i++) {
			s[i]=sc.nextLine().toCharArray();
			for(char c:s[i])
				if(c=='B')
					black++;
		}
		int l=-1,r=-1;
		for(int i=0;i<n;i++)
			for(int j=0;j<m;j++)
				if(s[i][j]=='B')
				{
					if(l==-1)
						l=j;
					r=j;
				}
		int u=-1,d=-1;;
		for(int i=0;i<n;i++)
			for(int j=0;j<m;j++)
				if(s[i][j]=='B')
				{
					if(u==-1)
						u=i;
					d=i;
				}
		int x=(u+d)/2+1;
		int y=(l+r)/2+1;
		System.out.println(x+" "+y);
		out.close();
	}
	
	static class Scanner {
        StringTokenizer st;
        BufferedReader br;
 
        public Scanner(InputStream s) {
            br = new BufferedReader(new InputStreamReader(s));
        }
        public Scanner() {
        	 br = new BufferedReader(new InputStreamReader(System.in));
        }
        
        public Scanner(FileReader s) {
            br = new BufferedReader(s);
        }
 
        public String next() throws IOException {
            while (st == null || !st.hasMoreTokens())
                st = new StringTokenizer(br.readLine());
            return st.nextToken();
        }
 
        public int nextInt() throws IOException {
            return Integer.parseInt(next());
        }
 
        public long nextLong() throws IOException {
            return Long.parseLong(next());
        }
 
        public String nextLine() throws IOException {
            return br.readLine();
        }
        public boolean ready() throws IOException {return br.ready();}
        public double nextDouble() throws IOException {return Double.parseDouble(next());}
       
    }

}