import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;


public class Main {
		
	public static void main(String[] args) throws IOException {
		InputStream is = new FileInputStream("in.txt");
		OutputStream os = new FileOutputStream("out.txt");
		int a, b;
			
		a = is.read();
		b = is.read();
		os.write(a + b);
	}

}