176+330=506, 3688-506=3182, 3182+37=3219, how much is it to combine these three formulas into a comprehensive formula.
176+330=506，3688-506=3182，3182+37=3219，把这三个算式组合成一个综合算式是多少．
<gadget id="calculator">176 + 330</gadget>
<output>506</output>

<gadget id="calculator">3_688 - 506</gadget>
<output>3_182</output>

<gadget id="calculator">3_182 + 37</gadget>
<output>3_219</output>

<result>3_219</result>