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 Mohammad  {
    //---------------------------------------------Main-----------------------------------------------//
    public static void Mohammad_AboHasan() throws IOException{
        FastReader fr = new FastReader();
        int n = fr.nextInt(), c = 0;
        int[] a = new int[6];
        for (int i = 0; i < n; i++) {
            c = fr.nextInt();
            if(c == 4)
                a[0]++;
            else if(c == 8 && a[0] > 0){
                a[1]++;
                a[0]--;
            }
            else if(c == 15 && a[1] > 0){
                a[2]++;
                a[1]--;
            }
            else if(c == 16 && a[2] > 0){
                a[3]++;
                a[2]--;
            }
            else if(c == 23 && a[3] > 0){
                a[4]++;
                a[3]--;
            }
            else if(c == 42 && a[4] > 0){
                a[5]++;
                a[4]--;
            }
        }
        System.out.println(n-a[5]*6);
    }
    public static void main(String[] args) throws IOException{
        Mohammad_AboHasan();
    }
    //---------------------------------------------FAST I/O-----------------------------------------------//
    static class FastReader{
        BufferedReader br;
        StringTokenizer st;
        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }
        String next() throws IOException{
            while (st == null || !st.hasMoreElements()) {
                    st = new StringTokenizer(br.readLine());
            }
            return st.nextToken();
        }
        int nextInt() throws IOException{
            return Integer.parseInt(next());
        }
        long nextLong() throws IOException{
            return Long.parseLong(next());
        }
        double nextDouble() throws IOException{
            return Double.parseDouble(next());
        }
        String nextLine() throws IOException{
            String s = br.readLine();
            return s;
        }
    }
}