#coding: UTF-8

import sys
from math import pi
from collections import deque
from functools import reduce

### defs ###

### main ###
N = int(sys.stdin.readline())
L = list(map(int, sys.stdin.readline().split()))

cnt = [L.count(i) for i in range(1,7)]
cnt.reverse()
mx = max(cnt)
idx = cnt.index(mx)
print(6-idx)