백준 1181번(python)

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num = int(input())
word_list = []
for word in range(num):
    word_list.append(input())
word_list = set(word_list)
word_dict = dict()
for word in word_list:
    word_dict[word] = len(word)
word_dict = sorted(word_dict, key = lambda x :  [len(x), x.lower()])
for word in word_dict:
    print(word)