#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int sxh(int x)
{
x -= '0';
int t = x * x * x;
return t;
}
int main()
{
char n[100];
gets(n);

int len = strlen(n);
int sum = 0;
for (int i = 0; i < len; i++)
{
sum += sxh(n[i]);
}
int n1 = atoi(n);
if (sum == n1)
printf("YES");
else
printf("NO");
}

#include <bits/stdc++.h>
using namespace std;
int GetNum(int x)
{
int sum=0;
for(;x>0;x=x/10)
{
int x1=x%10;
sum+=x1*x1*x1;
}
return sum;
}
int main()
{
int x=153;
cin>>x;
int y=GetNum(x);
if(x==y)
cout<<"YES";
else
cout<<"NO";

return 0;
}

#include <iostream>
using namespace std;
int main()
{
int x1,x2,x3,x;

cin>>x;
x1=x%10;
x2=((x-x1)/10)%10;
x3=(x-x%100)/100;
if(x1*x1*x1+x2*x2*x2+x3*x3*x3==x)
cout<<"YES"<<endl;
else
cout<<"NO"<<endl;
return 0;
}

#include <iostream>
#include <cmath>
using namespace std;

int GetNum(int x);

int main()
{
int x=153; cin>>x;
int y=GetNum(x);
if(x==y)
cout<<"YES";
else
cout<<"NO";
return 0;
}

int GetNum(int x)
{
int sum=0;
for(; x>0; x=x/10)
{
int x1=x%10;
sum += x1*x1*x1;
}
return sum;
}