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 random
import math
from collections import defaultdict
import itertools
from sys import stdin, stdout
import sys
import operator

#sys.setrecursionlimit(1500000000)




def main():
    z = ''
    #p = lambda *a: print(*a, flush = True)
    d = defaultdict()
    t = 1
    #for _ in range(int(stdin.readline())):
    n = int(input())
    #a, b = list(map(int, input().split()))
    a = list(map(int, input().split()))
    #s = input()
    z = [0]*6

    for i in range(n):
        if a[i] == 4:
            z[0]+=1
        elif a[i] == 8:
            if z[0]>z[1]:
                z[1]+=1
        elif a[i] == 15:
            if z[1]>z[2]:
                z[2]+=1
        elif a[i] == 16:
            if z[2]>z[3]:
                z[3] += 1
        elif a[i] == 23:
            if z[3] > z[4]:
                z[4]+=1
        else:
            if z[4] > z[5]:
                z[5]+=1
        #print(i, a[i])
    #print(z)

    print(n-z[5]*6)



    #     z += str(ans) + '\n'
    # stdout.write(z)

#for interactive problems
#print("? {} {}".format(l,m), flush=True)
#or print this after each print statement
#sys.stdout.flush()


if __name__ == "__main__":
    main()