bj_1713.py

import sys

sys.stdin = open('bj_1713_in.txt', 'r')
input = sys.stdin.readline

n = int(input().strip())
# print(n)
cnt = int(input().strip())
# print(student)
recommend = list(map(int, input().strip().split()))
# print(recommend)
frame = []
candidates_info = dict()
# print(len(dq))
for idx, person in enumerate(recommend):
    if person in frame: #존재하면
        candidates_info[person][0] += 1 #업데이트
    else: #존재하지 않으면
        if len(frame) >= n: #후보에서 방출
            out = min(frame, key=lambda x: candidates_info[x])
            frame.remove(out)
            candidates_info.pop(out)

        # 후보에 추가
        frame.append(person)
        candidates_info[person] = [1, idx]  # 추천횟수, 추천등록시기
    # print(frame)
frame.sort()
print(*frame)
# print(candidates_info)