d267. 11577 - Letter Frequency -- UVa11577 | From: [180.177.104.232] | 發表日期 : 2023-02-04 15:02

n = int(input())

for i in range(n):

    s = input()

    dic = {}

    for c in s:

        if not c.isalpha():

        c = c.lower()

        dic[c] = dic.get(c, 0) + 1

    mx = max(dic.values())

    for c in sorted(dic.keys()):

        if dic[c] == mx: