#include <iostream> using namespace std; int main() { int n,y,m; char k; cin>>n>>k; if(n<=1000) { y=8; } else { n=n-1000; if(n%500==0) { m=n/500; y=4*m+8; } if(n%500!=0) { m=n/500+1; y=4*m+8; } } if(k=='y') y=y+5; cout<<y; return 0; }