#include <bits/stdc++.h>

using namespace std;

int main(){
    int n;
    cin >> n;
    vector<int> types(n);
    for(int types_i = 0; types_i < n; types_i++){
       cin >> types[types_i];
    }
    // your code goes here
    int one[] ={0,1}, two[]={0,2} ,three[]={0,3}, four[]={0,4}, five[]={0,5};
    int* arr[]={one,two,three,four,five};
    for(int i=0;i<n;i++){
    switch(types[i]){
        case 1:
        one[0]++;
        break;
        case 2:
        two[0]++;
        break;
        case 3:
        three[0]++;
        break;
        case 4:
        four[0]++;
        break;
        case 5:
        five[0]++;
        break;
        default:
        cout << "failed";
        break;
    }
    }
    for(int d =0;d<6;d++){
    for(int i=0;i<4;i++){
        if(arr[i][0]<arr[i+1][0]){
        int swap1 = arr[i][0];
        int swap2 = arr[i][1];    
        arr[i][0]=arr[i+1][0];
        arr[i][1]=arr[i+1][1];    
        arr[i+1][0]=swap1;
        arr[i+1][1]=swap2;
        }
    }
}
    for(int p =0;p<6;p++){
    for(int i=1;i<5;i++){
    if(arr[0][0] == arr[i][0]){
       if(arr[0][1]>arr[i][1]){
        int swap1 = arr[0][0];
        int swap2 = arr[0][1];    
        arr[0][0]=arr[i][0];
        arr[0][1]=arr[i][1];    
        arr[i][0]=swap1;
        arr[i][1]=swap2;
        }
    }
    }
    }
    cout << arr[0][1];
    return 0;
}