#include<bits/stdc++.h> using namespace std; int main(){ char a; double b; cin>>a>>b; if(a=='P') printf("%.2lf",b*70/100); else if(a=='G') printf("%.2lf",b*80/100); else if(a=='S') printf("%.2lf",b*90/100); else printf("%.2lf",b*95/100); return 0; }