hdu2097

#include<iostream>
#include<stdio.h>
using namespace std;
int sum(int num,int x)
{
	int sum=0;
	while(num)
	{
		sum+=num%x;
		num/=x;
	}
	return sum;
}
int main()
{
	int num;
	while(scanf("%d",&num)&&num)
	{
		if((sum(num,10)==sum(num,12))&&(sum(num,12)==sum(num,16))&&sum(num,16)==22)
		{
			printf("%d is a sky number\n",num);
		}
		else
		{
			printf("no\n");
		}
	}
	return 0;
}