#include<bits/stdc++.h> using namespace std; int main() { char a; double b; cin >> a >> b; if (a == 'P') { printf( "%.2f", b* 0.7); } else if (a == '6') { printf("%.2f",b*0.8); }else if(a=='S'){ printf("%.2f",b*0.9); }else{ printf("%.2f",b*0.95); } return 0; }