Case 1: 1 Case 2: 0 Case 3: 3 Case 4: 1 Case 5: 3 Case 6: 2 Case 7: 2 Case 8: 4 Case 9: 0 Case 10: 1 Case 11: 14 Case 12: 15 Case 13: 32 Case 14: 10 Case 15: 10 Case 16: 28 Case 17: 16 Case 18: 11 Case 19: 15 Case 20: 15