import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a = sc.nextInt();
		for(int i = 1 ; i <= 10 ; i++) {
			if (a != i) {
				System.out.println(i);
				return;
			}
		}
	}
}