1. (20 points) Assume that you have a list of values where duplicate elements exist. Implement a function which takes this list as a parameter and it eliminates the duplicate values (keeps only the first occurring instance of each element) while preserving the order. Two sample input and output pairs are given below: Input: [1,5,2,1,9,1,5,10] Output: [1,5,2,9,10] Input: [1,4,2,1,9,1,10,0,4] Output: [1,4,2,1,9,10,0]