Problem: 

Input

The input contains a single integer a (0 ≤ a ≤ 35).

Output

Output a single integer.

Examples

Input

3


Output

8


Input

10


Output

1024

Solution (in PYTHON):

Solution:
answers = ["Washington","Adams","Jefferson"," Madison"," Monroe","Adams","Jackson","Van Buren","Harrison","Tyler","Polk","Taylor","Fillmore","Pierce","Buchanan","Lincoln","Johnson",\
           "Grant","Hayes","Garfield","Arthur","Cleveland","Harrison","Cleveland","McKinley","Roosevelt","Taft","Wilson","Harding","Coolidge","Hoover","Roosevelt","Truman",\
           "Eisenhower","Kennedy","Johnson","Nixon","Ford","Carter","Reagan","Bush","Clinton","Bush","Obama"]
a = int(raw_input())
print answers[a-1]