去重:set()
排序:list.sort()
while True:
try:
# 输入随机数个数
n = int(input())
lst = []
for i in range(n):
# 输入随机数
randomNumber = int(input())
lst.append(randomNumber)
# 去重
lst = set(lst)
# 排序
lst = list(lst)
lst.sort()
#输出结果
for i in lst:
print(i)
except:
break