#include <iostream>

// This is needed to manipulate the IO.
#include <iomanip>

using namespace std;

int main()
{
    double bill;

    do {
        cout << "Enter bill amount, $100 max. (0 to exit): ";
        cin >> bill;

        if(bill>0 && bill<=100) {
            cout << "You bill is: $" << bill << endl;
        }
        else if(bill>100){
            cout << "\aMax order is $100. Please resubmit bill." << endl;
        }
        else if(bill<0) {
            cout << "\aInvalid bill amount!" << endl;
        }
    }while(bill!=0);

    cout << "Thank you!" << endl;

    return 0;
}