import math
import sys

total = 0
dict = {"1" : ":::||",
        "2" : "::|:|",
        "3" : "::||:",
        "4" : ":|::|",
        "5" : ":|:|:",
        "6" : ":||::",
        "7" : "|:::|",
        "8" : "|::|:",
        "9" : "|:|::",
        "0" : "||:::"}

def checksum(zip):
    global total
    for i in zip:
        total += int(i)
    if total % 10 == 0:
        return ''
    else:
        for num in range(1,10):
            if (total+num) % 10 == 0:
                return str(num)

def barcode(zip):
    string = str(checksum(zip))
    zip = zip + string
    print("|", end = "")
    for i in zip:
        print(dict[i], end = "")
    print("|")

if __name__ == "__main__":
    print("Welcome to Bar Code Generator")
    while True:
        user = input("Enter Zip Code (exit to quit):\n")
        if user == "exit":
            print("Thanks for using me.")
            sys.exit()
        else:
            output = barcode(user)
            print("Bar Code:\n",output)