Updated Step 1 of part 1 of HW4
Updated Step 2&3 of part 1 of HW4
Updated Step 4 of part 1 of HW4
Updated Step 5&6 of part 1 of HW4
Updated Step 7&8 of part 1 of HW4
Updated Step 9 of part 1 of HW4
Updated all steps of part 1 of HW4