# numberwords.py
# --------------
# By MWC Contributors
# Functions to print out a verbal representation of an integer.

MAXIMUM = 1000000
DIGIT_NAMES = [
    "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"
]
TWEEN_AND_TEEN_NAMES = [
    "ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen"
]
TENS_NAMES = [
    "", "ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"
]

def int_under_1000000_to_str(number):
    if number < 1000:
        return int_under_1000_to_str(number)
    else:
        thousands = number // 1000
        remainder = number % 1000
        thousands_name = int_under_1000_to_str(thousands) + ' thousand'
        if remainder == 0:
            return thousands_name 
        else:
            return thousands_name + ' ' + int_under_1000_to_str(remainder)
       
        
def int_under_1000_to_str(number):
    if number < 100 :
        return int_under_100_to_str(number)
    else:
        hundreds = number // 100
        remainder = number % 100
        hundreds_names = int_under_10_to_str(hundreds) + ' hundred'
        if remainder == 0:
            return hundreds_names 
        else:
            return hundreds_names + ' and ' + int_under_100_to_str(remainder)

def int_under_100_to_str(number):
    if number <20:
        return int_under_20_to_str(number)
    else:
        tens = number // 10
        units = number % 10
        if units == 0:
            return TENS_NAMES[tens]
        else:
            return TENS_NAMES[tens] + '-' + int_under_10_to_str(units)
        

def int_under_20_to_str(number):
    if number <10:
        return int_under_10_to_str(number)
    else:
        return TWEEN_AND_TEEN_NAMES [number-10]


def int_under_10_to_str(number):
    return DIGIT_NAMES [number]

def divide_with_remainder(dividend, divisor):
    """Divides one number by another, using whole-number division. 
    Returns the quotient and the remainder. 
    """
    quotient = dividend // divisor
    remainder = dividend % divisor
    return quotient, remainder