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:
a = raw_input()
b = ['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']
print b[int(a)-1]