숫자 문자열과 영단어
num_dict = {'zero':'0','one':'1','two':'2','three':'3','four':'4','five':'5','six':'6','seven':'7','eight':'8','nine':'9'} number_list = list(num_dict.keys()) def solution(s): for number_idx in number_list: if number_idx in s: s = s.replace(number_idx,num_dict[number_idx]) answer = int(s) return answer