def remove_length(test_str, K):
  
  temp = test_str.split()
  res = [ele for ele in temp if len(ele) != K]
  res = ' '.join(res)
  return (res) 
def similar_elements(test_tup1, test_tup2):
  
  res = tuple(set(test_tup1) & set(test_tup2))
  return (res) 