def toggle_middle_bits(n):
    def set_middle_bits(n):  
        n |= n >> 1; 
        n |= n >> 2; 
        n |= n >> 4; 
        n |= n >> 8; 
        n |= n >> 16;  
        return (n >> 1) ^ 1
     
    if (n == 1): 
        return 1
    return n ^ set_middle_bits(n) 
def similar_elements(test_tup1, test_tup2):
  
  res = tuple(set(test_tup1) & set(test_tup2))
  return (res) 