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