import java.io.*;
import java.lang.*;
import java.util.*;

public class Main {
	
	public static void main(String args[]) {
		
		Scanner in = new Scanner(new File("adunare.in"));
	/*
		try {
		   in = new Scanner(new File("adunare.in"));
		} catch (Exception e) {
		   return;	
		}
	*/	
		int a = in.nextInt();
		int b = in.nextInt();
		
		Formatter out = null;
		try {
			out = new Formatter(new File("adunare.out"));
		} catch (Exception e) {
			return;
		}
		
		out.format("%d", 10);
		
		out.close();
		
		//System.out.println(s);
		
	}
	
}