import java.util.Scanner;

public class No744
{
	public static void main(String args[])
	{
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		String sample = "285714";

// n=4なら4%6 = 0..4なので4桁目の"7"
		String ans = sample.substring( (n-1)%6, n%6 );

		System.out.println( ans );
	}
}