Problem 1-2. Atomic Actions and Histories (2+1 points) Andrews, Exercise 2.10 (a) and (b), page 84. Andrews, Exercise 2.12 (a) only, page 84. Note: () For Exercise 2.10 (b), the assignment y -y-xis implemented by 4 atomic actions. (2) For both exercises 2.10 & 2.12, you should give at least one scenario for each set of final values of x and