学步园

 
# include <stdio.h>
int main()
{
	int n;
	int a,b,c;
	while(scanf("%d",&n)&&n!=0)
	{
		a=n%10;
		b=(n%100)/10;
		c=n/100;
		if(n==a*a*a+b*b*b+c*c*c)
			printf("Yes\n");
		else
			printf("No\n");
	}
	return 0;
}