Codeforces
CF Step
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  7. Educational Codeforces Round 158 (Rated for Div. 2)
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  9. B. Chip and Ribbon
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  11. Testcases : Chip and Ribbon

Testcases : Chip and Ribbon

TC1 

6

3
3 4 5

3
3 5 4

3
4 3 5

3
4 5 3

3
5 3 4

3
5 4 3

4
4
5
4
5
4