Yeah this is not for the competition these are practice problems.Hello Petalon. Are you allowed to seek outside help with this competition question?
PS: I fixed your image. Please preview future posts. Rotate images when needed. Thanks.
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The first move must be up, U, or L, left. Now a valid path is [imath]LLURULLU[/imath]
Petalon said:... starts at the upper left and goes [to] the lower right ...