I need help with this assignment. This is Python language

Exercise 1 det print_change (data) Input: a 2 dimensional list of numbers Result: Prints comma separated numbers, the difference between numbers in the provided data Details: For each row in the input, the function calculates the difference between adjacent values. For example, if a row contained (7.9,6], the printed output for that row would be 2.-3 because 9.7 is 2 and 6.9 is-3 The template file contains 2 multi-dimensional lists to help you with your testing grades and grades2. Take care to avoid changing these lists. You also need to create your own test cases Example output: >>> print change (grades2) 2,0,1 0,4,0 >>> print_change (grades) 3,2 1,6 2,3 2,1