10912.외로운 문자
풀이
T = int(input())
answer = []
for tc in range(1, T + 1):
word = input()
word_dict = {}
for char in word:
if char not in word_dict:
word_dict[char] = 1
else:
word_dict[char] += 1
result = []
for key, val in word_dict.items():
if val % 2 != 0:
result.append(key)
result.sort()
if len(result):
result = ''.join(map(str, result))
else:
result = 'Good'
answer.append(result)
for tc in range(1, T+1):
print(f'#{tc} {answer[tc-1]}')