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:
import sys

n = int(sys.stdin.readline())

presidents = ["",
"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"]
print presidents[n]