input: Write a function to remove duplicate entries from a list.
  
  Input:
  [1,2,2,3,3,4]
  
  Output:
  def removeDuplicates(input): 
      final_list = [] 
      for num in input: 
          if num not in final_list: 
              final_list.append(num) 
      return final_list 
  
  lst = [1,2,2,3,3,4]
  print(removeDuplicates(lst))
output: def removeDuplicates(input): 
      final_list = [] 
      for num in input: 
          if num not in final_list: 
              final_list.append(num) 
      return final_list