1. Python exercises:

1. Create a for loop that prompts the user to enter 3 different items, then appends them to new items list
2. Write a program for removing duplicates from the list, append unique values to new list ex: a=[1,2,1,3,2,4,4,5] new_list=[1,2,3,4,5]
3. Write a Python function to print a list where the values are square of numbers

between a and b. ex range(10,30)>>out : 100, 121,144,169,196,225,256.........900

4. write function where two strings are given, then remove letters from first string if they are in string2

ex: string1='heyhowareyou' string2='hurray'>>>output: 'eoweo'