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10 questions
31-21=
9
11
10
35-21=
15
14
40-21=
30
29
19
46-21=
25
26
27
53-21=
32
33
31
59-21=
36
37
38
72-21=
50
51
52
66-21=
46
45
44
80-21=
57
58
59
91-21=
71
69
70
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