text: #
  # Find the Single Number
  #
  
  
  def single_number(array):
      single_num = []
      repeated_num = []
      temp = array[:]
      for x in array:
          temp.remove(x)
          if x not in temp and x not in repeated_num:
              single_num.append(x)
          else:
              repeated_num.append(x)
      return single_num
  
  
  if __name__ == '__main__':
      array_1 = [2, 3, 4, 2, 3, 5, 4, 6, 4, 6, 9, 10, 9, 8, 7, 8, 10, 7]
      array_2 = [2, 'a', 'l', 3, 'l', 4, 'k', 2, 3, 4, 'a', 6, 'c', 4, 'm', 6, 'm', 'k', 9, 10, 9, 8, 7, 8, 10, 7]
      single_num_1 = single_number(array_1)
      single_num_2 = single_number(array_2)
      print(single_num_1)
      print(single_num_2)
  