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.io.IOException;

import java.io.BufferedReader;
import java.io.InputStreamReader;

import java.io.PrintWriter;

import java.util.StringTokenizer;

public class Main {
    
    static Scanner s = new Scanner();
    static PrintWriter out = new PrintWriter(System.out);
    
    public static void main(String[] args) throws IOException {
        int l = s.nextInt(), c = s.nextInt(), t = 0, lig = 0, col = 0;
        for(int i = 0; i < l; i++) {
            char[] ch = s.next().toCharArray();
            for(int j = 0; j < c; j++) {
                if(ch[j] == 'B') {
                    t++;
                    lig += i;
                    col += j;
                }
            }
        }
        out.print((lig / t + 1) + " " + (col / t + 1));
        out.close();
    }

    static class Scanner {
        BufferedReader in;
        StringTokenizer s;
        
        public Scanner() {
            in = new BufferedReader(new InputStreamReader(System.in));
            s = new StringTokenizer("");
        }
        
        public String next() throws IOException {
            if(!s.hasMoreTokens())
                s = new StringTokenizer(in.readLine());
            return s.nextToken();
        }
        
        public int nextInt() throws IOException {
            return Integer.parseInt(next());
        }
    }
}