You are given an array a consisting of n integers. Each a_i is one of the six following numbers: 4, 8, 15, 16, 23, 42.

Your task is to remove the minimum number of elements to make this array good.

An array of length k is called good if k is divisible by 6 and it is possible to split it into k/6 subsequences 4, 8, 15, 16, 23, 42.

Examples of good arrays:

  * [4, 8, 15, 16, 23, 42] (the whole array is a required sequence); 
  * [4, 8, 4, 15, 16, 8, 23, 15, 16, 42, 23, 42] (the first sequence is formed from first, second, fourth, fifth, seventh and tenth elements and the second one is formed from remaining elements); 
  * [] (the empty array is good). 



Examples of bad arrays: 

  * [4, 8, 15, 16, 42, 23] (the order of elements should be exactly 4, 8, 15, 16, 23, 42); 
  * [4, 8, 15, 16, 23, 42, 4] (the length of the array is not divisible by 6); 
  * [4, 8, 15, 16, 23, 42, 4, 8, 15, 16, 23, 23] (the first sequence can be formed from first six elements but the remaining array cannot form the required sequence). 

Input

The first line of the input contains one integer n (1 ≤ n ≤ 5 ⋅ 10^5) — the number of elements in a.

The second line of the input contains n integers a_1, a_2, ..., a_n (each a_i is one of the following numbers: 4, 8, 15, 16, 23, 42), where a_i is the i-th element of a.

Output

Print one integer — the minimum number of elements you have to remove to obtain a good array.

Examples

Input


5
4 8 15 16 23


Output


5


Input


12
4 8 4 15 16 8 23 15 16 42 23 42


Output


0


Input


15
4 8 4 8 15 16 8 16 23 15 16 4 42 23 42


Output


3
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Arrays;

public class codeforces{
    public static void main(String[] args) throws IOException{
        InputStreamReader isr=new InputStreamReader(System.in);
        BufferedReader br=new BufferedReader(isr);
        StringBuilder str=new StringBuilder();
        PrintWriter out=new PrintWriter(System.out);
        int t=Integer.parseInt(br.readLine());
        String[] lol=br.readLine().split(" ");
        int[] arr=new int[t];
        for(int i=0;i<t;i++)
        arr[i]=Integer.parseInt(lol[i]);
        int[] a=new int[6];
        for(int i=0;i<t;i++){
            if(arr[i]==4)
            a[0]++;
            else
            if(arr[i]==8){
                if(a[1]<a[0])
                a[1]++;
            }
            else 
            if(arr[i]==15){
                if(a[2]<a[1])
                a[2]++;
            }
            else 
            if(arr[i]==16){
                if(a[3]<a[2])
                a[3]++;
            }
            else
            if(arr[i]==23){
                if(a[4]<a[3])
                a[4]++;
            }    
            else 
            if(a[5]<a[4])
            a[5]++;
        }
        str.append(t-6*a[5]).append("\n");
        out.print(str);
        out.close();
    }
}