# include<iostream> using namespace std; int a[100][100]; int main(){ int m,n,g,s,b,k; cin >>m>>n; for(int i=m;i<=n;i++){ g=i%100; s=i%10; b=i/100; k=g*g*g+s*s*s+b*b*b; if(i==k){ cout <<"yes"; return 0; } } cout <<"no"; return 0; }