ag-gipp/GoUldI

<math xmlns="http://www.w3.org/1998/Math/MathML"><mrow><mi>L</mi></mrow><mo>=</mo><mfenced close="}" open="{"><msub><mi>π</mi><mn>1</mn></msub><msub><mi>π</mi><mn>2</mn></msub></mfenced></math>