Text: Using Python, write a function named shift(list, x). The function receives a list and an integer x as inputs. The function should return the list shifted by x positions to the left. For example, if the input list is [1, 2, 3, 4, 5, 6] and x is 4, the returned list should be [5, 6, 1, 2, 3, 4]. Answer for question 3.