last.py

competitors = [0] * (int(input()))
for election in map(int, input().split()):
    if 0 < election <= len(competitors):
        competitors[election - 1] += 1
if len(competitors) > 0:
    win_res = max(competitors)
else:
    win_res = 0
if win_res != 0:
    for i in range(len(competitors)):
        if competitors[i] == win_res:
            print(i + 1, end=' ')
else:
    print(0)