An engineering team is digging a canal. It has already dug 50 kilometers, and the undug is 3.2 times that dug. How many kilometers is the total length of this canal?
某工程队正在挖一条水渠，已经挖了50千米，没有挖的是已挖的3.2倍，这条水渠全长多少千米？
<gadget id="calculator">3.2 + 1</gadget>
<output>4.2</output>

<gadget id="calculator">50 * 4.2</gadget>
<output>210</output>

<result>210</result>