// Zahlen summieren, Java Version

public class sumlempty {
	
			
	static public void main(String [] arg) {

		long i = Long.parseLong (arg[0]);

		
		for (; i > 0; i--) {
			}
		
		System.out.print (".... done, sum: ");
		System.out.println (i);
		}
		
		
	}