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
from sys import stdin,stdout
a=int(stdin.readline())
b=[[],[],[],[],[],[]]
for i,j in zip(stdin.readline().split(),range(a)):
    if i=='4':b[0]+=[j]
    elif i=='8':b[1]+=[j]
    elif i=='15':b[2]+=[j]
    elif i=='16':b[3]+=[j]
    elif i=='23':b[4]+=[j]
    else:b[5]+=[j]
for i in range(6):b[i]+='.'
s=0;i0,i1,i2,i3,i4,i5=0,0,0,0,0,0
for i in range(min(a//6,len(b[0]))):
    p=1;j=b[0][i]
    while b[1][i1]!='.' and j>b[1][i1]:i1+=1
    if b[1][i1]!='.':j=b[1][i1];i1+=1
    else:p=0
    while b[2][i2]!='.' and j>b[2][i2]:i2+=1
    if b[2][i2]!='.':j=b[2][i2];i2+=1
    else:p=0
    while b[3][i3]!='.' and j>b[3][i3]:i3+=1
    if b[3][i3]!='.':j=b[3][i3];i3+=1
    else:p=0
    while b[4][i4]!='.' and j>b[4][i4]:i4+=1
    if b[4][i4]!='.':j=b[4][i4];i4+=1
    else:p=0
    while b[5][i5]!='.' and j>b[5][i5]:i5+=1
    if b[5][i5]!='.':j=b[5][i5];i5+=1
    else:p=0
    if p:s+=6
stdout.write(str(a-s))
