rt.

#include<bits/stdc++.h>

using namespace std;
int n; 
int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin>>n;
	int l=0,r=n;
	while(l<=r)
	{
		int mid=l+r>>1;
		if(mid*mid*mid==n)
		{
			cout<<"Yes";
			return 0;
		}
		else if(mid*mid*mid<n)
		{
			l=mid+1;
		}
		else
		{
			r=mid-1;
		}
	}
	cout<<"No";
	return 0;
}