Need help with this python question

Write a python program to take 10 values from user. The values
are given below:
myValues = 3,6,7,9,3,6,8,3,5,10, 19,0,1,0,15
1. Print the sum of those numbers which are at odd positions and
the division of the even index numbers.
2. Remove the duplicate numbers and place some random number
between (20 to 30) instead of that number, and store in this way
that no one can edit these values later.