import java.math.*;
import java.util.*;

public class Main{
	public static void main(String[] args)
	{
	Scanner s = new Scanner(System.in);
	while(s.hasNext()){
		BigInteger a,b;
		a = s.nextBigInteger();
		b = s.nextBigInteger();
		System.out.println(a.add(b));
	}
	}
}