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 C {

	public static void main(String[] args) {
		
		Scanner s = new Scanner(System.in);
		int n = s.nextInt();
		int s1 = 0;
		int s2 = 0;
		int s3 = 0;
		int s4 = 0;
		int s5 = 0;
		int s6 = 0;
		int rm = 0;
		for (int i = 0; i < n; i++) {
			
			int val = s.nextInt();
			if (val == 4) {
				s1++;
			} else if (val == 8) {
				if (s1 != 0) {
					s1--;
					s2++;
				} else {
					rm++;
				}
			} else if (val == 15) {
				if (s2 != 0) {
					s2--;
					s3++;
				} else {
					rm++;
				}
			} else if (val == 16) {
				if (s3 != 0) {
					s3--;
					s4++;
				} else {
					rm++;
				}
			} else if (val == 23) {
				if (s4 != 0) {
					s4--;
					s5++;
				} else {
					rm++;
				}
			} else if (val == 42) {
				if (s5 != 0) {
					s5--;
					s6++;
				} else {
					rm++;
				}
			}
			
		}
		rm += s1;
		rm += 2 * s2;
		rm += 3 * s3;
		rm += 4 * s4;
		rm += 5 * s5;
		System.out.println(rm);
		
	}
	
}
