The code block cannot be processed correctly.

[myoldcat]

For example: https://atcoder.jp/contests/arc184/tasks/arc184_a

the code block uses "math xmlns="http://www.w3.org/1998/Math/MathML"

the Result is like:

<var><span><span><span id="54e6e475-995d-4b73-b48a-f722e6ecdf32"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>N</mi></mrow><annotation encoding="application/x-tex">N</annotation></semantics></math></span></span></span></var> <var><span><span><span id="432c33bc-ee65-414a-bbae-5e4b8ed27948"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>M</mi></mrow><annotation encoding="application/x-tex">M</annotation></semantics></math></span></span></span></var> <var><span><span><span id="4c66e6aa-b1ed-4767-9d94-ce1b9adb8421"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>Q</mi></mrow><annotation encoding="application/x-tex">Q</annotation></semantics></math></span></span></span></var>