// editor3
#include<iostream>
#include<string>
using namespace std;
int main(){
    string member;
    int dis,cost,x;
    float dur;
    cin>>member>>dis>>dur;
    if (member=="Basic")
    {
        cost=(dur*30)
        x=(20/cost)*100;
        cout<<x;
    }
    return 0;
}