import java.io.*;

public class Main {
    public static void main(String args[]) throws IOException{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String line = br.readLine();
        int a = Integer.parseInt(line);
        if(a % 2 == 0){
            System.out.println("2" + a%2);
        }else{
            System.out.println("1" + a % 1);
        }
    }
}