Python 풀이
import re
def solution(s):
s = re.sub('zero', '0', s)
s = re.sub('one', '1', s)
s = re.sub('two', '2', s)
s = re.sub('three', '3', s)
s = re.sub('four', '4', s)
s = re.sub('five', '5', s)
s = re.sub('six', '6', s)
s = re.sub('seven', '7', s)
s = re.sub('eight', '8', s)
s = re.sub('nine', '9', s)
return (int (s))