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
if __name__ == '__main__':
    n = 0
    Arr = []
    n = int(input())
    Arr = list(map(int,input().split()))
    t1 = 0
    t2 = 0
    t3 = 0
    t4 = 0
    t5 = 0
    t6 = 0
    # 4 8 15 16 42 23
    for i in range(n):
        if Arr[i] == 4:
            t1 += 1
        if Arr[i] == 8:
            if t2 < t1:
                t2 += 1
        if Arr[i] == 15:
            if t3 < t1 and t3 < t2:
                t3 += 1
        if Arr[i] == 16:
            if t4 < t1 and t4 < t2 and t4 < t3:
                t4 += 1
        if Arr[i] == 23:
            if t5 < t1 and t5 < t2 and t5 < t3 and t5 < t4:
                t5 += 1
        if Arr[i] == 42:
            if t6 < t1 and t6 < t2 and t6 < t3 and t6 < t4 and t6 < t5:
                t6 += 1
    
    Min = t1
    Min = min(Min, t2)
    Min = min(Min, t3)
    Min = min(Min, t4)
    Min = min(Min, t5)
    Min = min(Min, t6)

    print(n - Min*6)

