I. (30%) You have learned in class on 9/18/18 that two processes A and B can share a common data of 100 and each of them tries to update by increasing by 5 and 3 respectively. If data sharing is handled properly, the shared data will be updated to 100 5 3- 108. However, if the data sharing is not handled properly, the shared data can be updated to 103 or 105. Explain how these 3 situations (115, 105, and 110) can happen. Suppose A increases the data by 5, and then later on decreases by 2. Suppose some time B increases the shared data by 7. Compute as many as possible values of the shared data depending on the sequence how data update happened (note there are conceivably at least 3 different values and there should not be more than 10 different values by different combinations of the sequence of readings and writings)