import java.util.Scanner;
public class AddLoop
{
public static void main( String[] args )
{
Scanner keyboard = new Scanner(System.in);
int s, x;
s=0;
System.out.println(" number: " );
x = keyboard.nextInt();
for ( int n = 1 ; n <= x ; n = n+1 )
{
System.out.println( n );
s=s+n;
}
System.out.println( " The sum is " + s );
}
}