Problem Statement

This is the 214-th AtCoder Beginner Contest (ABC).
The ABCs so far have had the following number of problems.

• The 1-st through 125-th ABCs had 4 problems each.
• The 126-th through 211-th ABCs had 6 problems each.
• The 212-th through 214-th ABCs have 8 problems each.

Find the number of problems in the N-th ABC.

Input

Input is given from Standard Input in the following format:
N

Output

Print the answer.

Constraints

• $1 \leq N \leq 214$
• All values in input are integers.

Sample Input 1

214

Sample Output 1

8

Sample Input 2

1

Sample Output 2

4

Sample Input 3

126

Sample Output 3

6

见题面 Input 部分

见题面 Output 部分