using System; using System.Collections.Generic; using System.Linq; using System.Text; class Program { private int R,K; private int H,W; private char[][]C; private void Scan() { var l=Console.ReadLine().Split(' '); R=int.Parse(l[0])/4; K=int.Parse(l[1]); l=Console.ReadLine().Split(' '); H=int.Parse(l[0]); W=int.Parse(l[1]); C=new char[H][]; for(int i=0;i