import sys

class Node:
    def __init__(self, val):
        self.val = val
        self.left = None
        self.right = None
        
    def set_l(self, node):
        self.left = node
        
    def set_r(self, node):
        self.right = node
        
def create_tree(ls):
    root = len(ls) // 2
    node = Node(ls[root])
    
    if len(ls) >= 2:
        node.set_l(create_tree(ls[:root]))
    if len(ls) >= 3:
        node.set_r(create_tree(ls[root + 1:]))
    
    return node

def print_ans(node):
    if node is None:
        return
    
    if node.val == 2:
        node.val = 3
    elif node.val == 1:
        node.val = 2
    elif node.val == 3:
        node.val = 1
        
    sys.stdout.write(str(node.val) + ' ')
    print_ans(node.left)
    print_ans(node.right)
    
k = int(input())

ls = list(range(1, 2**k))
tree = create_tree(ls)

print_ans(tree)
print('')