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.*;

public class CF_LoseIt {

	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		
		int c0=0;
		int c1=0;
		int c2=0;
		int c3=0;
		int c4=0;
		int c5=0;
		
		int n = sc.nextInt();
		int[] arr= new int[n];
		
		for(int i=0; i<n; i++) {
			arr[i]=sc.nextInt();
		}
		
		for(int i=0; i<n;i++) {
			if(arr[i]==4){
				c0++;
				continue;
			}
			if(arr[i]==8 && c1<c0){
				c1++;
				continue;
			}
			if(arr[i]==15 && c2<c1){
				c2++;
				continue;
			}
			if(arr[i]==16 && c3<c2){
				c3++;
				continue;
			}
			if(arr[i]==23 && c4<c3){
				c4++;
				continue;
			}
			if(arr[i]==42 && c5<c4){
				c5++;
				continue;
			}
		}
		System.out.println(arr.length-c5*6);
	}

}
