import java.util.*; public class Main { static Scanner sc = new Scanner(System.in); public static void main(String[] args) { String s = sc.next(); System.out.println(judge(s)==true?"Yes":"No"); } static boolean judge (String s) { if (s.length()==1) { if (s.matches("[67]")==false) {return false;} } else { for (int i=0; i