The bottom hole is occupied, you'll only be allowed to use the top one. But I'm 18yo and not on BC so you'll have a tough decision to make when you get close to finishing

25 42

18 10

17 21

13 3

26 11

26 41

44 43

40 44

22 43

36 46

50 43

74 45

50 21

17 12

37 41

17 12