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:

str1 = '''
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'''



str1 = str1.split('\n')
x = input()

#if x in [9]:
#	raise ValueError



print str1[x]