Task B1

def expanded_form(num):
    i = 0
    data = str(num)
    l = len(data)
    export = str()
    while i < l:
        if data[i] != '0':
            export += str(int(data[i]) * pow(10, abs(i+1 - l)))
            print(export)
            export += ' '
        i += 1
    export = export.strip(' ')
    export = export.split(' ')
    export = " + ".join(export)
    print("Return = ", export)
    return export