Hi, I want to replace items in a matrix like this: 2 4 (0 1)} 3 2 $ 0 2 4 2 4 0 0 but when using u} the following happens: 2 4 (0 1"_)} 3 2 $ 0 2 4 0 0 0 0 why is there a difference? Judging from the vocabulary example of u}, there is some method to it, but I haven't understood it yet. Help greatly appreciated! (I'm stuck in aoc day 9 because of this problem)
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