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