#include <iostream>
#include <string.h>
using namespace std;
class lamborghini;
class rollsRoyce
{
    public: 
    string modelName;
    int year,mileage;
    float price;

    void read()
    {
         cout<<"enter details";
        cin>>modelName>>year>>price>>mileage;

    }
    void print()
    {
        cout<<"the details are\n"<<modelName<<endl<<year<<endl<<price<<endl<<mileage<<endl;

    }
    friend void cmp(rollsRoyce a, lamborghini b);
};
class lamborghini
{
    public: 
    string modelName;
    int year,mileage;
    float price;

    void read()
    {
        cout<<"enter details of lamborghini";
        cin>>modelName>>year>>price>>mileage;

    }
    void print()
    {
        cout<<"the details are\n"<<modelName<<endl<<year<<endl<<price<<endl<<mileage<<endl;

    }
    friend void cmp(rollsRoyce a, lamborghini b);
};
void cmp(rollsRoyce a,lamborghini b)
{
    if(a.price<b.price)
    {
        cout<<"rolls royce is cheaper\n";
    }
    else{
        cout<<"lamborghini is cheaper\n";
    }
    if(a.mileage>b.mileage)
    {
        cout<<"rolls royce has better mileage\n";
    }
    else{
        cout<<"lamborghini has better mileage\n";
    }