1#include <bits/stdc++.h>2using namespace std;3int main()4{5 int x;6 cin>>x;7 if(x>=90) {8 cout<<"expert";9 }10 else if(x>=70){11 cout<<90-x;12 }13 else if(x>=40)14 {15 cout<<70-x;16 }17 else {18 cout<<40-x;19 }20}