GUYS how to solve this

Paths from A to B is 90 how to calculate paths from B to C

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For horizontal the shortest way is to go horizontal on the top 2 rows. Or go one horizontal on any row and one from top 2 rows, so make cases for that, and then for vertical ones, just take standard cases. One thing, be mindful that you aren't going down in any case

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No i still did not understand what are you trying to say.

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