#include<iostream>
#include<iomanip>
#include<cstdio>
using namespace std;
int main()
{
    int x,y;
    double t;
    cin>>x>>y;
    switch(x){
        case(1):t=4.00;
        break;
        case(2):t=4.50;
        break;
        case(3):t=5.00;
        break;
        case(4):t=2.00;
        break;
        case(5):t=1.50;
    }
    float X=t*y;
    // cout<<"Total: R$ "<<fixed<<setprecision(2)<<X<<endl;
    printf("Total: R$ %.2f",X);

    return 0;
}