Easy
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Hard
Expert
Time taken:
00:01
Pause
4
6
7
8
9
5
5
6
3
2
8
7
1
6
2
1
8
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1
9
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2
8
8
7
9
2
1
9
7
3
1
5
2
8
1
2
3
4
5
6
7
8
9
Delete
Check
Note
Strategy