If the temperature in a certain place is -1°C in the morning and rises by 1°C at noon, what is the temperature at noon?
某地一天早晨的气温是-1℃，中午上升了1℃，则中午的气温是多少℃．
<gadget id="calculator">(-1) + 1</gadget>
<output>0</output>

<result>0</result>