numbers to words

ones={"0":"","1":"one","2":"two","3":"three","4":"four","5":"five","6":"six","7":"seven","8":"eight","9":"nine","10":"ten",
      "11":"eleven","12":"tweleve","13":"thirteen","14":"fourteen","15":"fifteen","16":"sixteen","17":"seventeen","18":"eighteen","19":"nineteen",
      "20":"twenty","30":"thirty","40":"fourty","50":"fifty","60":"sixty","70":"seventy","80":"eighty","90":"ninty"}

number=input("enter a number = ")
while(len(number)>3):
    number=input("INVALID INPUT enter a number less than 1000 = ")

if(len(number)==1):
        print(ones[number])

if(len(number)==2):
    for i in ones:
        if(number==i):
            print(ones[i])
            break
        elif(number not in ones):
            tens_place=(int(number)//10)*10
            once_place=(int(number)%10)
            print(ones[str(tens_place)],ones[str(once_place)])
            break

if(len(number)==3):
    hunderds_place=number[0]
    tens_place=int(number)-((int(number[0]))*100)
    for i in ones:
        if(str(tens_place)==i):
            print(ones[hunderds_place],"hundred ",ones[i])
        elif(str(tens_place) not in ones):
            ten_place=(int(tens_place)//10)*10
            one_place = (int(tens_place) % 10)
            print(ones[hunderds_place],"hundred and",ones[str(ten_place)], ones[str(one_place)])
            break