// Donovan Rich
// Period 6
// Noticing Even Numbers
// EvenNum.java
// 2/18/2016
public class EvenNum
{
public static void main( String[] args )
{
for ( int n = 1 ; n <= 20; n = n+1 )
{
System.out.print("\n" + n );
if ( n%2 == 0 )
System.out.print(" ");
}
System.out.println();
}
}