#include<iostream>
using namespace std;
int main(){
	int n;
	long long a,b,c;
	cin>>n>>a>>b>>c;
	if(n<=3)
		if(a<b&&a<c)
			cout<<"library";
		else
			if(n>3||n<=5)
				if(b<a&&b<c)
					cout<<"comprehensive";	
				else
					if(n<5||n<=9)
						if(c<a&&c<b)
							cout<<"art";
	return 0;
}

请大佬们看看