#include<iostream>
#include<string>
using namespace std;
class costomer{
    public:
        string name;
        void getcostomer(string n){
            name=n;
        }
};
class meter{
    public:
        int unitsconsumed;
        void getUnit(int units){
            unitsconsumed=units;
        }
};
class Bill:public costomer,public meter{
    public:
        int totalBill;
        void calculateBill(){
            if(unitsconsumed<0){
                cout<<"Invalid input";
            }else{
                totalBill=(unitsconsumed*15)+50;
                cout<<name<<" "<<totalBill;
            }
        }
};
int main(){
    string name;
    int units;
    getline(cin,name);
    cin>>units;
    
    Bill obj;
    obj.getcostomer(name);
    obj.getUnits(units);
    obj.calculate;
}