There are 10 points on the circle, connect any two of them. How many different regions can the circle be divided into at most?
圆周上有10个点，将其中任意两个点相连．请问圆最多被划分为多少个不同区域？
<gadget id="calculator">45 + 210 + 1</gadget>
<output>256</output>

<result>256</result>