import java.util.Scanner;
public class prog88
{
public static void main( String[] args )
{
Scanner keyboard = new Scanner(System.in);
System.out.print( "Number: " );
int x = keyboard.nextInt();
int y = 0;
for ( int n = 1; n <= x; n = n+1 )
{
System.out.print( n + " " );
y = x+y;
if ( n == x )
System.out.println( " " );
}
System.out.println( "The sum is " + y + "." );
}
}