🤔 생각해보기
def solution(s):
strings = s.split(" ")
answer = []
for i in range(len(strings)):
strings[i] = list(strings[i])
for j in range(len(strings[i])):
if j % 2 == 0 :
answer.append(strings[i][j].upper())
elif j % 2 == 1 :
answer.append(strings[i][j].lower())
answer.append(" ")
return ''.join(answer[:-1])
print(solution('try hello world'))