题解 | #明明的随机数#

b = []
while True:
    try:
        num = int(input())
        a = []
        for i in range(num):
            a.append(int(input())) #将本组的数放入a
        b.append(a)#将所有组的数放到二维数组b
    except:
        break

for i in range(len(b)):
    b[i] = list(set(b[i]))#去重运用set（将一组数据变为集合，自动去重）
    b[i].sort() #排序
for i in range(len(b)):
    for j in range(len(b[i])): #按要求输出
        print(b[i][j])