#include<iostream> #include<iomanip> using namespace std; int main(){ char m; double a,b; cin>>a>>m>>b; switch(m){ case'P': b=a*0.7;break; case'G': b=a*0.8;break; case'S': b=a*0.9;break; default: b=a*0.95;break; } cout<<fixed<<setprecision(2)<<endl; cout<<b<<endl; return 0; }