n = int(input())
up_change = 0
ones = ["", "one ", "two ", "three ", "four ", "five ", "six ", "seven ", "eight ", "nine "]
teens = ["ten ", "eleven ", "twelve ", "thirteen ", "fourteen ", "fifteen ", "sixteen ", "seventeen ", "eighteen ", "nineteen "]
tens = ["","", "twenty ", "thirty ", "forty ", "fifty ", "sixty ", "seventy ", "eighty ", "ninety "]
orders = ["","thousand ", "million ", "billion "]
h = "hundred "
word = ""
minus = False
if n == 0:
    word = "zero"
if n < 0 :
    n = -n
    minus = True
while n > 0:
    s = n % 1000
    if s <= 9 and s > 0 :
        o = s % 10
        word = ones[o] + orders[up_change] + word
    if s < 20 and s > 9:
        te = s % 10
        word = teens[te] + orders[up_change] + word
    if s <= 99 and s >= 20:
        o = s % 10
        t = (s // 10) % 10
        word = tens[t] + ones[o] + orders[up_change] + word
    if s <= 999 and s >=100 :
        if (s%100) < 20 and (s%100) > 9:
            te = s % 10
            oh = (s // 100) % 10
            word = ones[oh] + h + teens[te] + orders[up_change] + word
        else:
            o = s % 10
            t = (s // 10) % 10
            oh = (s // 100) % 10
            word = ones[oh] + h + tens[t] + ones[o] + orders[up_change] + word
    up_change +=1
    n = n // 1000
if not minus:
    print(word)
else:
    print("minus " + word )