import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;


public class Test {

	public static void main(String[] args) throws IOException {
		int a, b,s;
		BufferedReader in=new BufferedReader(new FileReader("adunare.in"));
		a=in.read();
		b=in.read();
		s=a+b;
		BufferedWriter out=new BufferedWriter(new FileWriter("adunare.out"));
		out.write(s);
	}
}