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

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

}

return 0;

}

#include<iostream> #include<cmath> using namespace std; //判断水仙花数

int main(){ int n; cin >> n; while(n){ int ge,shi,bai; bai=n/100; ge=n%10; shi=(n%100-ge)/10; if(pow(ge,3)+pow(shi,3)+pow(bai,3)==n) cout << "Yes" << endl; else cout << "No" << endl; cin >> n; } return 0; }