(63+21*103)/53．
(63+21*103)/53．
<gadget id="calculator">21 * 103</gadget>
<output>2_163</output>

<gadget id="calculator">63 + 2_163</gadget>
<output>2_226</output>

<gadget id="calculator">2_226 / 53</gadget>
<output>42</output>

<result>42</result>