题解 | #明明的随机数#

import sys

sample_num = input()
data = []
unique_data = []

for i in range(int(sample_num)):
    data.append(int(input()))

for i in data:
    if i not in unique_data:
        unique_data.append(i)
unique_data.sort()
for i in unique_data:   

    print(i)