def extract_min_max(test_tup, K):
  
  
  res = []
  test_tup = list(test_tup)
  temp = sorted(test_tup)
  for idx, val in enumerate(temp):
    if idx < K or idx >= len(temp) - K:
      res.append(val)
  res = tuple(res)
  return (res) 
def count_ways(n):
	 
	A = [0] * (n + 1) 
	B = [0] * (n + 1) 
	A[0] = 1
	A[1] = 0
	B[0] = 0
	B[1] = 1
	for i in range(2, n+1): 
		A[i] = A[i - 2] + 2 * B[i - 1] 
		B[i] = A[i - 1] + B[i - 2] 
	return A[n] 