#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    cin >> n;
    int hist[5] = {0};
    while(n > 0){
        cin >> current;
        if(current == 1 || current == 3 || current == 5){
            hist[current] += 1;
        }
        else if(current == 4){
            hist[current] += 3;
        }
    }
    int max = hist[0];
    for(int i = 0; i < n; i++){
        if(max < hist[i]){
            max = hist[i];
        }
    }
    cout << hist[i] << endl;
    return 0;
}