import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.OutputStream;

public class Main {

	public static void main(String[] args) throws Exception{
		
		int x, y, z;
		
		BufferedReader br = new BufferedReader(new FileReader("adunare.in"));
		String tmp[] = br.readLine().split(" ");
		x = Integer.parseInt(tmp[0]);
		tmp = br.readLine().split(" ");
		y = Integer.parseInt(tmp[0]);
		z = x + y;
		
		OutputStream fout = new BufferedOutputStream(new FileOutputStream("adunare.out"));
		fout.write((z+"\n").getBytes());
		
		br.close();
		fout.close();
	}

}