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 = int(input())
arr = [int(x) for x in input().split()]
cnt = {4: 0,8:0,15:0,16:0,23:0,42:0}
ans = 0
for i in arr:
	if(i==4):
		cnt[i]+=1
	elif(i==8):
		if(cnt[i]>=cnt[4]):
			ans+=1
		else:
			cnt[i]+=1
	elif(i==15):
		if(cnt[i]>=cnt[8]):
			ans+=1
		else:
			cnt[i]+=1
	elif(i==16):
		if(cnt[i]>=cnt[15]):
			ans+=1
		else:
			cnt[i]+=1
	elif(i==23):
		if(cnt[i]>=cnt[16]):
			ans+=1
		else:
			cnt[i]+=1
	elif(i==42):
		if(cnt[i]>=cnt[23]):
			ans+=1
		else:
			cnt[i]+=1
temp = 0
for i in cnt.values():
	temp+=i-cnt[42]
print(ans+temp)