#include<cstdio>
#include<vector>
#include<cstring>
#include<cmath>
#include<queue>
#include<set>
#include<algorithm>
#include<ctime>
#include<cstdlib>
using namespace std;
int n;
char sir[109];
double proc,cost;
void afis(double proc)
{
    printf("%d\n",(int)((double)cost*proc/100));
}
int main()
{
//freopen("input","r",stdin);
//freopen("output","w",stdout);
gets(sir+1);
n=strlen(sir+1);
scanf("%lf",&cost);
if(sir[1]=='H')
{
    if(cost<=12950) proc=10;
    else
    if(cost<=49400) proc=15;
    else
    if(cost<=127550) proc=25;
    else
    if(cost<=206600) proc=28;
    else
    if(cost<=405100) proc=33;
    else
    if(cost<=432200) proc=35;
    else proc=(double)39.6;
}
else
if(sir[n]=='s')
{
    if(cost<=18150) proc=10;
    else
    if(cost<=73800) proc=15;
    else
    if(cost<=148850) proc=25;
    else
    if(cost<=226850) proc=28;
    else
    if(cost<=405100) proc=33;
    else
    if(cost<=457600) proc=35;
    else proc=(double)39.6;
}
else
if(sir[n]=='y')
{
    if(cost<=9075) proc=10;
    else
    if(cost<=36900) proc=15;
    else
    if(cost<=74425) proc=25;
    else
    if(cost<=113425) proc=28;
    else
    if(cost<=202550) proc=33;
    else
    if(cost<=228800) proc=35;
    else proc=(double)39.6;
}
else
{
    if(cost<=9075) proc=10;
    else
    if(cost<=36900) proc=15;
    else
    if(cost<=89350) proc=25;
    else
    if(cost<=186350) proc=28;
    else
    if(cost<=405100) proc=33;
    else
    if(cost<=406750) proc=35;
    else proc=(double)39.6;
}
afis(proc);
return 0;
}