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())
l4 = 0
l8 = 0
l15 = 0
l16 = 0
l23 = 0
l42 = 0
k = 0
s = input()
s = s.split()
for i in range (n):
    s[i] = int(s[i])
    if (s[i] == 4):
        l4 += 1
    elif (s[i] == 8) and l4 > 0:
        l8 += 1
        l4 -= 1
    elif (s[i] == 15) and l8 > 0:
        l15 += 1
        l8 -= 1
    elif (s[i] == 16) and l15 > 0:
        l16 += 1
        l15 -= 1
    elif (s[i] == 23) and l16 > 0:
        l23 += 1
        l16 -= 1
    elif (s[i] == 42) and l23 > 0:
        l42 += 1
        l23 -= 1
    else:
        k += 1
print(k+l4+l8*2+l15*3+l16*4+l23*5)
