numberWord = {
    0: '',

    1: 'one', 
    2: 'two', 
    3: 'three', 
    4: 'four', 
    5: 'five', 
    6: 'six', 
    7: 'seven', 
    8: 'eight', 
    9: 'nine', 
    
    10: 'ten', 
    11: 'eleven', 
    12: 'twelve', 
    13: 'thirteen', 
    14: 'fourteen', 
    15: 'fifteen', 
    16: 'sixteen', 
    17: 'seventeen', 
    18: 'eighteen', 
    19: 'nineteen', 
    
    20: 'twenty', 
    30: 'thirty', 
    40: 'forty', 
    50: 'fifty', 
    60: 'sixty', 
    70: 'seventy', 
    80: 'eighty', 
    90: 'ninety',

    100: 'onehundred',
    200: 'twohundred',
    300: 'threehundred',
    400: 'fourhundred',
    500: 'fivehundred',
    600: 'sixhundred',
    700: 'sevenhundred',
    800: 'eighthundred',
    900: 'ninehundred',

    1000: 'onethousand'
}
andString = "and"

numberString = ""

for i in range (1,21):
    numberString += numberWord[i]

for i in range (21,1001):
    ones = i % 10
    tens = i % 100 - ones
    huns = i - tens - ones

    numberStringInProgress = ""

    if i == 20 or i == 30 or i == 40 or i == 50 or i == 60 or i == 70 or i == 80 or i == 90 or i == 100 or i == 200 or i == 300 or i == 400 or i == 500 or i == 600 or i == 700 or i == 800 or i == 900 or i == 1000:
        numberString += numberWord[i]
    else:
        if i > 100:
            numberStringInProgress += numberWord[huns]
            numberStringInProgress += andString
        if tens >= 20 or tens == 0:
            numberStringInProgress += numberWord[tens]
            numberStringInProgress += numberWord[ones]
        elif tens == 10:
            numberStringInProgress += numberWord[tens+ones]
        numberString += numberStringInProgress

print("The length of all the numbers from 1 to 1000 (inclusive) written out in words is " + str(len(numberString)) + " letters.")