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
def count_good_array(n,arr): 

    if len(arr)<6:
        return len(arr)

    count = {'4':0,'8':0,'15':0,'16':0,'23':0,'42':0}
    
    for i in range (len(arr)):

        if arr[i] == 4:
            count['4'] += 1
            continue

        if arr[i] == 8:
            if count['4'] >0:
                count['4'] -= 1
                count['8'] += 1
                continue
            else:
                continue    

        
        if arr[i] == 15:
            if count['8'] >0:
                count['8'] -= 1
                count['15'] += 1
                continue
            else:
                continue 

        if arr[i] == 16:
            if count['15'] >0:
                count['15'] -= 1
                count['16'] += 1
                continue
            else:
                continue 
            
        if arr[i] == 23:
            if count['16'] >0:
                count['16'] -= 1
                count['23'] += 1
                continue
            else:
                continue 
            
        if arr[i] == 42:
            if count['23'] >0:
                count['23'] -= 1
                count['42'] += 1
                continue
            else:
                continue  

    return len(arr) - (6*count['42'])                              


def main():
        
    n = int(raw_input())
    arr = map(int, raw_input().rstrip().split())
    res = count_good_array(n,arr)
    print(str(res))

main()