#include<iostream> using namespace std; int main() { int n,m,sum=0,a,b,c; cin>>n>>m; for(int i=n;i<=m;i++){ a=i%10; b=i%100/10; c=i/100; if(a*a*a+b*b*b+c*c*c==i){ sum+=1; } } if(sum==0){ cout<<"no"; } else{ cout<<sum; } return 0; }