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#include<stdio.h>
int main() {
	int n,i,a,b,c;
	while(scanf("%d",&n),n!=0) {
		a=n%10+n/10%10+n/100%10+n/1000;
		for(i=n,b=0; i!=0; i=i/12)
			b=b+i%12;
		for(i=n,c=0; i!=0; i=i/16)
			c=c+i%16;
		if(a==b&&a==c)
			printf("%d is a Sky Number.\n",n);
		else
			printf("%d is not a Sky Number.\n",n);
	}
	return 0;
}