#include<iostream> using namespace std; int main(){ int a; char b; cin>>b>>a; switch(b){ case 'P':printf("%.2lf",a*0.7);break; case 'G':printf("%.2lf",a*0.8);break; case 'S':printf("%.2lf",a*0.9);break; default: printf("%.2lf",a*0.95);break; } return 0; }