import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
	  while(scan.hasNext()){
		  int n=scan.nextInt();
		  if(n==0)break;
		  int s1=f(n,10),s2=f(n,12), s3=f(n,16);
	      if(s1==s2&&s2==s3)
	    	  System.out.println(n +" is a Sky Number.");
	      else 
	    	  System.out.println(n +" is not a Sky Number.");
	  }
}
	public static int f(int n,int i){
		int s=0;
		while(n!=0){
			s+=n%i;
			n/=i;
		}
		return s;
	}
}