//	Assignment 1 (P.12, #3)
//	John Wang
//	Goal: The code reads first name and last name,
//			and out a greeting

import java.util.Scanner;

class Greeting
{
	public static void main(String[] args)
	{
		Scanner input = new Scanner(System.in);
		String first, last;
		first = input.next();
		last = input.next();

		System.out.println("Hello " + first + " " + last);
	}
}