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.
린학교┚{텔ㄹPmote7》 린육성 린학교 린육성✱린대리 린학교
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random