[프로그래머스 Level1]시저 암호

https://programmers.co.kr/learn/courses/30/lessons/12926?language=python3 

코딩테스트 연습 - 시저 암호

def solution(s, n):
    answer=''
    for i in s:
        char=' '
        if i != ' ' and i >= 'a' and i <= 'z':
            char=ord(i)+n
            if char > ord('z'):
                char=char-ord('z')+ord('a')-1
            char = chr(char)
        elif i != ' ' and i >= 'A' and i <= 'Z':
            char=ord(i)+n
            if char > ord('Z'):
                char=char-ord('Z')+ord('A')-1
            char=chr(char)
        answer += char
    return answer

# print(solution("z",1))
print(solution("a B z",4))