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.*;
import java.util.*;
public class vk18
{
    public static void main(String[]st) throws Exception
    {
    	//Scanner scan=new Scanner(System.in);
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String s[];
        int i,j;
        //ArrayList<Integer> []al=new ArrayList[6];
        //for(i=0;i<6;i++) al[i]=new ArrayList<Integer>();
        int n=Integer.parseInt(br.readLine()),k=0;
    	s=br.readLine().split(" ");
    	int a=0,b=0,c=0,d=0,e=0,count=0;
    	for(i=0;i<s.length;i++)
    	{
    		k=Integer.parseInt(s[i]);
    		if(k==4) a++;
    		else if(k==8) {if(a-b>0) b++;}
    		else if(k==15) {if(b-c>0) c++;}
    		else if(k==16) {if(c-d>0) d++;}
    		else if(k==23) {if(d-e>0) e++;}
    		else {if(e-count>0) count++; }
    	}
    	System.out.println(n-(6*count));
    	
    }
}
