sweed33

import java.util.Scanner;
public class OvejasNegras {
     static  boolean ovejablanca=false;
   static int fil,col;
   public static void main(String[] args) {
        Scanner t=new Scanner(System.in);
        while(t.hasNext()){
           ovejablanca=false;
           String[] campos=t.nextLine().split(" ");
           col=Integer.parseInt(campos[0]);