import java.util.Scanner;

public class Number {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner s = new Scanner(System.in);
		int N = s.nextInt();
		s.close();
		if(N == 1){
			System.out.println("7");
		}else if(N ==2){
			System.out.println("8");
		}else if(N == 3){
			System.out.println("9");
		}else if(N == 4){
			System.out.println("4");
		}else if(N == 6){
			System.out.println("6");
		}else if(N == 7){
			System.out.println("1");
		}else if(N == 8){
			System.out.println("2");
		}else if(N == 9){
			System.out.println("3");
		}else if(N == 10){ 
			System.out.println("0");
		}else if(N == 5){
			System.out.println("5");
		}
	}

}