#!/bin/python

import sys


n = int(raw_input().strip())
types = map(int, raw_input().strip().split(' '))
# your code goes here

m={}
m[1]=(types.count(1))
m[2]=types.count(2)
m[3]=types.count(3)
m[4]=types.count(4)
m[5]=types.count(5)

l=max(m.values())

k=[i for i,j in m.items() if j==l]

print min(k)