연습문제(Lv.01) 둘만의 암호 👾
https://school.programmers.co.kr/learn/courses/30/lessons/155652
def solution(s, skip, index):
alpha = "abcdefghijklmnopqrstuvwxyz"
answer = ""
for i in list(skip):
alpha = alpha.replace(i,"")
for a in s:
answer += alpha[(alpha.find(a) + index) % len(alpha)]
return answer