Case 1:
Before                                  After
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Case 2:
Before                                    After
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Case 3:
Before                           After
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Case 5:
Before                                  After
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Case 6:
Before                                   After
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Case 7:
Before                                   After
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Case 8:
Before                                   After
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Case 9:
Before                                    After
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Case 10:
Before                                     After
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Case 11:
Before                                    After
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Case 12:
Before                          After
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Case 13:
Before                                   After
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Case 14:
Before                                   After
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Case 15:
Before                                   After
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