In a pile of steel pipes, there are 2 steel pipes in the uppermost layer, 60 steel pipes in the lowest layer, and the difference between two adjacent layers is 1 steel pipe. How many steel pipes are there in total in this pile?
一堆钢管，最上层有2根，最下层有60根，相邻两层相差1根，这堆钢管一共有多少根．
<gadget id="calculator">2 + 60</gadget>
<output>62</output>

<gadget id="calculator">60 - 2</gadget>
<output>58</output>

<gadget id="calculator">58 + 1</gadget>
<output>59</output>

<gadget id="calculator">59 / 2</gadget>
<output>59/2 = around 29.5</output>

<gadget id="calculator">62 * (59/2)</gadget>
<output>1_829</output>

<result>1_829</result>