<svg xmlns="http://www.w3.org/2000/svg" xmlns:wrs="http://www.wiris.com/xml/mathml-extension" height="35" width="126" wrs:baseline="31"><!--MathML: <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">B</mi><mover><mi mathvariant="normal">&#x2192;</mi><mi>+4</mi></mover><mi mathvariant="normal">F</mi><mover><mi mathvariant="normal">&#x2192;</mi><mi>+4</mi></mover><mi mathvariant="normal">J</mi><mover><mi mathvariant="normal">&#x2192;</mi><mi>+4</mi></mover><mi mathvariant="normal">N</mi><mover><mi mathvariant="normal">&#x2192;</mi><mi>+4</mi></mover><mi mathvariant="normal">R</mi><mo>&#xA0;</mo></math>--><defs><style type="text/css">@font-face{font-family:'math18a121345d8781ea0e1492d0a67';src:url(data:font/truetype;charset=utf-8;base64,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)format('truetype');font-weight:normal;font-style:normal;}</style></defs><text font-family="Arial" font-size="16" text-anchor="middle" x="5.5" y="31">B</text><text font-family="math18a121345d8781ea0e1492d0a67" font-size="12" text-anchor="middle" x="16.5" y="14">+</text><text font-family="Arial" font-size="12" text-anchor="middle" x="24.5" y="14">4</text><text font-family="math18a121345d8781ea0e1492d0a67" font-size="16" text-anchor="middle" x="19.5" y="31">&#x2192;</text><text font-family="Arial" font-size="16" text-anchor="middle" x="33.5" y="31">F</text><text font-family="math18a121345d8781ea0e1492d0a67" font-size="12" text-anchor="middle" x="43.5" y="14">+</text><text font-family="Arial" font-size="12" text-anchor="middle" x="51.5" y="14">4</text><text font-family="math18a121345d8781ea0e1492d0a67" font-size="16" text-anchor="middle" x="46.5" y="31">&#x2192;</text><text font-family="Arial" font-size="16" text-anchor="middle" x="59.5" y="31">J</text><text font-family="math18a121345d8781ea0e1492d0a67" font-size="12" text-anchor="middle" x="68.5" y="14">+</text><text font-family="Arial" font-size="12" text-anchor="middle" x="76.5" y="14">4</text><text font-family="math18a121345d8781ea0e1492d0a67" font-size="16" text-anchor="middle" x="71.5" y="31">&#x2192;</text><text font-family="Arial" font-size="16" text-anchor="middle" x="86.5" y="31">N</text><text font-family="math18a121345d8781ea0e1492d0a67" font-size="12" text-anchor="middle" x="97.5" y="14">+</text><text font-family="Arial" font-size="12" text-anchor="middle" x="105.5" y="14">4</text><text font-family="math18a121345d8781ea0e1492d0a67" font-size="16" text-anchor="middle" x="100.5" y="31">&#x2192;</text><text font-family="Arial" font-size="16" text-anchor="middle" x="115.5" y="31">R</text></svg>