There are 86 boxes of beverages in Tianrunfa supermarket, 27 boxes are sold in the morning, and 18 boxes are shipped in the afternoon. How many boxes of drinks are there in the supermarket now?
天润发超市有86箱饮料，上午卖出27箱，下午又运来18箱，超市现在有多少箱饮料．
<gadget id="calculator">86 - 27</gadget>
<output>59</output>

<gadget id="calculator">59 + 18</gadget>
<output>77</output>

<result>77</result>