#include <iostream>
#include <iomanip>
using namespace std;
class Ticket{
    string type;
    double price;
    public:
    void setData(string t,double p){
        type=t;
        price=p;
    }
    void calculatePrice(){
        if(price < 0){
            cout<<" Invalid input";
            return 0;
        }
        if (type=="child") price*=0.8;
        else if(type == "senior")price*=0.85;
        else if(type=="student")price*=0.9;
        else if(type!="adult"){cout<<"Invalid input";return;}
        cout<<type<" "<<fixed<<setprecision(2)<<price<<endl;
    }
};
int main(){
    string t;double p;
    cin>> t >>p;
    Ticket ticket;
    ticket.setData(t,p);
    ticket.calculatePrice();
}