STD_TAX = 0.06
OTH_TAX = 0.05
while True:
    con = "Z"
    validstate = False
    fullName = str(input("Enter your full name: "))
    quan = int(input("Enter the number of items: "))
    cost = float(input("Enter the cost per item: "))
    discount = float(input("Enter the discount percentage (e.g. 10 for 10%): "))
    state = str(input("Enter your state (e.g. PA): "))

    if state == "PA":
        tax = STD_TAX
        validstate = True
    elif len(state) != 2:
        print("invalid state!")
        validstate = False
    else:
        tax = OTH_TAX
        validstate = True

    # print("Welcome " + fullName + "!")
    # print("You are purchasing " + str(quan) + " items at $" + str(cost) + " per item.")
    # print("You will have " + str(int(discount)) + " percent discount.")
    # print("Your total is $" + str(round(cost*quan - (((discount/100) * (cost*quan))))*(tax + 1)),2)
    if validstate:
        print("Thank you: " + fullName)
        print("Your Order:")
        print("\t Qualtity: " + str(quan))
        print("\t Cost: $" + str(round((cost*quan-(cost*quan*(discount/100)))*(1+tax),2)))

    while (con != "Y" and con != "y") and (con != "N" and con != "n"):
        con = input("Do you want to start over? (Y/N): ")

    if con == "N" or con == "n":
        break