A. Find Square
implementation
Consider 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.
The 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.
Output 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.