#include<iostream>
using namespace std;
class coustomer{
    public:
    string name;
    void getname(string n){
        name = n;
    }
    
};
class Meter{
    public:
    int units;
    void getunits(int u){
        units = u;
    }
};
class Bill : public Coustomer , public Meter{
    public:
    void calculateBill(){
        if( units <0) {
            cout << "Invalid input";
        }
        else{
            int totalBill = (units = 5)+ 50;
            cout<<name << " "<<totalBill;
        }
    }
    public:
    int units;
    void getunits(int u){
        units = u;
    }
};
class Bill : public coustomer , public Meter{
    public:
    void calculateBill(){
        if(units <0){
            cout<<"Invalid input";
        }
        else{
            int totalBill = (units = 5)+ 50;
            cout <<name<< " "<<totalBill;
        }
        
    }
};
int main(){
    string n;
    int u;
    cin >> n >> u;
    Bill b;
    b.getname(n);
    b.getunits(u);
    b.calculateBill();
    return 0;
}