题解 | #明明的随机数#

import sys


def reduce_diff(num_list):
    num_set = set(num_list)
    result = list(num_set)
    result.sort()
    # print(result)
    for num in result:
        print(num)


if __name__ == "__main__":
    try:
        index = int(sys.stdin.readline().strip())
        num_list = []
        if index >= 1 and index <= 1000:
            for i in range(index):
                num_list.append(int(sys.stdin.readline().strip()))
        reduce_diff(num_list)
    except Exception as e:
        print(e)