#!/bin/python3

import sys


n = int(input().strip())
types = list(map(int, input().strip().split(' ')))
type=[0]*5
for i in range(0,n):
    if(types[i]==1):
        type[0]+=1
    elif(types[i]==2):
        type[1]+=1
    elif(types[i]==3):
        type[2]+=1
    elif(types[i]==4):
        type[3]+=1
    elif(types[i]==5):
        type[4]+=1
        
print(max(type)+1)
# your code goes here