A person walks -5 meters from a position of -3 meters, then walks -1 meters, and finally walks +12 meters. What is the position of this person now?
某人从-3米的位置先走了-5米，又走了-1米，最后走了+12米，这个人现在在多少位置．
<gadget id="calculator">(-3) + (-5) + (-1) + 12</gadget>
<output>3</output>

<result>3</result>