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:
# April Fools Contest 2013
# Problem A

def president(x):
    pres = ['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']
    return pres[x-1]

x = raw_input("")
print president(int(x))