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.
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 si1si2…sim (sij is 'W' for white cells and 'B' for black cells), describing the i-th row of the table.
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.
5 6
WWBBBW
WWBBBW
WWBBBW
WWWWWW
WWWWWW
2 4
3 3
WWW
BWW
WWW
2 1
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