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.util.Scanner;

public class N {
	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		
		int [] b=new int [n];
		for(int i=0;i<n;i++) {
			b[i]=sc.nextInt();
		}
		int s1=0,s2=0,s3=0,s4=0,s5=0,s6=0;
		for(int i=0;i<n;i++ ) {
			if(b[i]==4)			s1++;
			if(b[i]==8&&s2<s1)	s2++;
			if(b[i]==15&&s3<s2)	s3++;
			if(b[i]==16&&s4<s3)	s4++;
			if(b[i]==23&&s5<s4)	s5++;
			if(b[i]==42&&s6<s5)	s6++;
			
		}
		//System.out.println(s6);
		if(s6==0)	System.out.println(n);
		else		System.out.println(n-6*s6);
	}

}
  	  	 								 		  	 	 	 		  	