6.21 LAB: Permutation and Combination Write two functions called permutation0 and combination0, where permutation0 computes and returns n! n -r)! whereas combination0 returns A third function called par_input0 gets the input values for n and r. An example of correct program behavior follows: nput: 32 Output: The permutation is 6, and the combination is 3. LAB ACTIVITY 6.21.1: LAB: Permutation and Combination 0/3 main.py Load default template... 1 Add your code here