请用函数调用的方式，实现当输入一个小于100的整数时，编程实现自动将这个整数转换为英文输出的形式。如输入的整数为76，则转换后的输出结果为：seventy six。
def unit_to_word(u):
convert_table = {0: "zero",1: "one",2: "two",3: "three",4: "four",
5: "five",6: "six",7: "seven",8: "eight",9: "nine"}
return convert_table[u]
def tens_to_word(t):
convert_table = {
0: "",10: "ten", 11: "eleven",12: "twelve",13: "thirteen",14: "fourteen",
15: "fifteen",16: "sixteen",17: "seventeen",18: "eighteen",19: "nineteen",
2: "twenty",3: "thirty",4: "forty",5: "fifty",6: "sixty",7: "seventy",8: "eighty",
9: "ninety"}
if 9 < t < 20:
return convert_table[t]
else:
tens = convert_table[t//10] + " " + unit_to_word(t%10)
return tens
n=int(input('请输入：'))
print(tens_to_word(n))