n, B = list(map(int, input().strip().split()))
T = 0

# your code here

i=1
i++1
if i%2==0:
    pi=2^i+1 
elif i%2==1:
  pi=3^i+1
  
    

  



# please do not modify the input and print statements
# and make sure that your code does not have any other print statements
print(T)
