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