public class LeapYearFor {
static boolean isLeapYearFor(int year){
if((year%4==0&&year%100!=0)||year%400==0)
return true;
else
return false;
}
public static void main(String args[]){
int count=0;
for(int i=1800;i<=2006;i++){
if(isLeapYearFor(i)){
System.out.print(" "+i);
count++;
}
if(count%10==0)System.out.println();
}
}
}