//no package name //import when necessaryimport java.util.Scanner;//it has to be Main classpublic class Main {	public static void main(String[] args){		Scanner input = new Scanner(System.in);				//Wrong answer when using while(true)		while(input.hasNext()){			int a = input.nextInt(), b = input.nextInt();			System.out.println(a+b);		}	}}