#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 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; }