#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ double a; char n; cin>>n>>a; switch(n) { case 'P': printf("%.2lf\n",a*0.7); break; case 'G': printf("%.2lf\n",a*0.8); break; case 'S': printf("%.2lf\n",a*0.9); break; default: printf("%.2lf\n",a*0.95); break; } return 0; }