There are 10 lighted candles on the table. The wind blows in through the window and blows out two candles. After a while, another candle is blown out. Close the window, no more candles are blown out, how many candles are left in the morning?
桌上有10支点燃的蜡烛．风从窗户吹进来，吹灭了2支蜡烛，过了一会儿，又有一支蜡烛被吹灭．把窗关起来，再没有蜡烛被吹灭，第二天早上还剩几支蜡烛？
<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<result>3</result>