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:
t = """Washington (1789-1797) 
Adams (1797-1801) 
Jefferson (1801-1809) 
Madison (1809-1817) 
Monroe (1817-1825) 
 Adams
Jackson (1829-1837) 
Van Buren (1837-1841) 
Harrison (1841) 
Tyler (1841-1845) 
Polk (1841-1849) 
Taylor (1849-1850) 
Fillmore (1850-1853) 
Pierce (1853-1857) 
Buchanan (1857-1861) 
Lincoln (1861-1865) 
Johnson (1865-1869) 
Grant (1869-1877) 
Hayes (1877-1881) 
Garfield (1881) 
Arthur (1881-1885) 
Cleveland (1885-1889) 
Harrison (1889-1893) 
Cleveland (1893-1897) 
McKinley (1897-1901) 
Roosevelt (1901-1909) 
Taft (1909-1913) 
 Wilson (1913-1921) 
 Harding (1921-1923) 
 Coolidge (1923-1929) 
 Hoover (1929-1933) 
  Roosevelt (1933-1945) 
  Truman (1945-1953) 
 Eisenhower (1953-1961) 
 Kennedy (1961-1963) 
 Johnson (1963-1969) 
 Nixon (1969-1974) 
 Ford (1974-1977) 
 Carter (1977-1981) 
 Reagan (1981-1989)"""

for i in range(10):
 t = t.replace (str(i), "")

t = t.replace (")", "")
t = t.replace ("(", "")
t = t.replace ("-", "")

l = t.split("\n")

n = input()


print l[n-1].strip()