<?xml version="1.0" encoding="UTF-8"?>
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mi>L</mi>
<mfenced close=")" open="(">
<msub>
<mi>H</mi>
<mi>B</mi>
</msub>
</mfenced>
<mo>⊗</mo>
<mi>C</mi>
<mfenced close=")" open="(">
<mi>X</mi>
</mfenced>
</math>