

Input

The input contains a single integer a (10 ≤ a ≤ 999).

Output

Output 0 or 1.

Examples

Input

13


Output

1


Input

927


Output

1


Input

48


Output

0
#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"
