Problem D of Codeforces Round #224 has incorrectly rendered samples for me. (Chrome on Mac). There are curly braces in the output for samples 2 and 5. These are not in the actual data, they are just on the website.
Here is the second sample:
3 4
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#>^{}#
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The curly braces are not supposed to be there. I know there have since been updates to how samples are rendered (showing different backgrounds for adjacent test cases within the same sample, for example), so I suspect this may have broken in one of those updates.
Not sure where to post this, so thought I'd flag it here.