Xiao Ming forms a three-layer hollow square with chess pieces, and there are 19 more chess pieces. He adds another layer to the hollow part of the square, and there are 17 chess pieces. How many chess pieces does Xiao Ming have?
小明用棋子摆成一个三层的空心方阵，还多19枚棋子，他在方阵的空心部分再加一层又差17粒棋子，小明共有多少枚棋子？
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">10 + 6</gadget>
<output>16</output>

<gadget id="calculator">16 - 3</gadget>
<output>13</output>

<gadget id="calculator">13 * 3 * 4</gadget>
<output>156</output>

<gadget id="calculator">156 + 19</gadget>
<output>175</output>

<result>175</result>