import java.io.FileReader;
import java.io.FileWriter;

public class Animal {
	
	public static void main(String[] args) {
		try {
			FileReader in = new FileReader("adunare.in");
			FileWriter out = new FileWriter("adunare.out");
			
			Integer a = in.read();
			Integer b = in.read();
			
			out.write(a + b);
			
			in.close();
			out.close();
		} catch(Exception e) {
			e.printStackTrace();
		}
	}
	
}