Case #1: 18
Case #2: 13
Case #3: 14
Case #4: 16
Case #5: 13
Case #6: 10
Case #7: 12
Case #8: 611
Case #9: 1244
Case #10: 993
Case #11: 930
Case #12: 1249
Case #13: 83785
Case #14: 86801
Case #15: 82883
Case #16: 76552
Case #17: 82847
Case #18: 235227063
Case #19: 346924584
Case #20: 999496508