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
n = input()
INF = 5* (10**5) + 1
cnt = {}
s = [4,8,15,16,23,42]
disc= 0
cnt[4]= 0
cnt[8]= 0
cnt[15] = 0
cnt[16] = 0
cnt[23] = 0
cnt[42] = 0
a = map(int,raw_input().split())
for i in a:
	if i not in s:
		disc += 1
		continue
	else:
		d = s.index(i)
		if d!= 0:
			if cnt[s[d-1]] != 0:
				cnt[i]+=1
				cnt[s[d-1]]-=1
			else:
				disc+=1
		else:
			cnt[i]+=1
		# print disc
for i,(j,k) in enumerate(sorted(cnt.items())):
	# print i,j,k,disc
	if j!=42:
		disc+=k*(i+1)
print disc