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.
쌍문건마┡ 【yy82˛icU】△쌍문건마◆쌍문키방✪쌍문키방 쌍문키방 쌍문키스방
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random