def find_k_product(test_list, K):
  def get_product(val) : 
  	res = 1
  	for ele in val: 
  		res *= ele 
  	return res 
  
  res = get_product([sub[K] for sub in test_list])
  return (res) 
def similar_elements(test_tup1, test_tup2):
  
  res = tuple(set(test_tup1) & set(test_tup2))
  return (res) 