45*73+45*26+45．
45*73+45*26+45．
<gadget id="calculator">45 * 73</gadget>
<output>3_285</output>

<gadget id="calculator">45 * 26</gadget>
<output>1_170</output>

<gadget id="calculator">3_285 + 1_170 + 45</gadget>
<output>4_500</output>

<result>4_500</result>