#include<iostream>
using namespace std;
int main()
{
 string i;
 double p;
 double c;
 cin>>i;
 cin>>p;
 c=(20%);
 cout<<c;
 
             if(p>0)
             {
   if(i=="Adult")
 {
     cout<<p;
 }
    else if(i=="Child")
 {
     c=p*(20/100);
    cout<<p-c;
}
    else if(i=="Senior")
 {
     c=p*(15/100);
    cout<<p-c;
}
    else if(i=="Student")
 {
     c=p*(10/100);
    cout<<p-c;
}
else
{
    cout<<"Invalid input";
}
             }

            else
            {
    cout<<"Invalid input";
            }
return 0;
}