Case #1: 2
Case #2: 3
Case #3: -1
Case #4: 4
Case #5: 10
Case #6: 2
Case #7: 5
Case #8: 1
Case #9: 2
Case #10: -1
Case #11: 1363
Case #12: 1493
Case #13: 68
Case #14: 123
Case #15: 417
Case #16: 1215
Case #17: -1
Case #18: 79
Case #19: 133
Case #20: 134
Case #21: 964
Case #22: 38
Case #23: 1489
Case #24: -1
Case #25: 345
Case #26: 113
Case #27: 1026
Case #28: 795
Case #29: 659
Case #30: 1076