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0
0
1
1
?
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1
Level 1
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1
?
Level 2
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0
1
0
1
0
1
0
1
1
?
1
1
1
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0
0
0
?
0
1
✔
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0
0
0
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0
1
1
?
1
0
1
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0
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0
Doesn’t work
2 of 2
Level 3
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1
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0
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1
1
0
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0
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?
Level 4
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1
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0
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0
?
1
Level 5
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?
0
0
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1