Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
时代娱乐场（永久链接:SE8.TV）时代娱乐场_时代娱乐场_时代娱乐场_时代娱乐场_时代娱乐场时代娱乐场_时代娱乐场_时代娱乐场_O8x8xxxx
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
