A. Find Squaretime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputConsider a table of size n \times 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.InputThe first line contains two integers n and m (1 \le n, m \le 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} \ldots s_{im} (s_{ij} is 'W' for white cells and 'B' for black cells), describing the i-th row of the table.OutputOutput two integers r and c (1 \le r \le n, 1 \le c \le m) separated by a space — the row and column numbers of the center of the black square.ExamplesInput5 6WWBBBWWWBBBWWWBBBWWWWWWWWWWWWWOutput2 4Input3 3WWWBWWWWWOutput2 1
Input5 6WWBBBWWWBBBWWWBBBWWWWWWWWWWWWW
Output2 4
['implementation', '*800']