Case #1: 2
Case #2: -1
Case #3: 1
Case #4: -1
Case #5: 9
Case #6: -1
Case #7: -1
Case #8: 9998
Case #9: 499
Case #10: 501
Case #11: 108
Case #12: 153
Case #13: 315
Case #14: 1008
Case #15: 27
Case #16: 23
Case #17: -1
Case #18: -1
Case #19: 15
Case #20: 32
Case #21: -1
Case #22: 116
Case #23: -1
Case #24: 8887
Case #25: -1
Case #26: 316
Case #27: -1
Case #28: 291
Case #29: 131
Case #30: 16
Case #31: 3999
Case #32: 813
Case #33: 1636
Case #34: 1279
Case #35: 361