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:
#print "1" if int(raw_input()) in [13, 24, 44, 81, 149, 274, 504, 927] else "0"
print "1" if int(raw_input()) % 2 else "0"