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
// No sorceries shall previal. //
     
import java.util.Arrays;
import java.util.Scanner;
import java.io.PrintWriter;
     
    public class InVoker{
    	
    	public static void main(String args[]) {
    		
    		
    		Scanner inp = new Scanner(System.in);
    		PrintWriter out= new PrintWriter(System.out);
    		
    		int a=0,b=0,c=0,d=0,e=0,f=0;
    		int n=inp.nextInt();
    		
    		for(int i=0;i<n;i++)
    		{
    			int k= inp.nextInt();
    			if(k==4)
    				a++;
    			else if(k==8 && a>b)
    				b++;
    			else if(k==15 && b>c)
    				c++;
    			else if(k==16 && c>d)
    				d++;
    			else if(k==23 && d>e)
    				e++;
    			else if(k==42 && e>f)
    				f++;
    			
    		}
    		out.println(n-f*6);
    		out.close();
    	}
    	
    }