Math enthusiasts know all about it, and the rest of the population is probably hoping for cherry pie.
![rc.img](http://rc.feedsportal.com/r/247394613196/u/197/f/676993/c/35494/s/4e401b4c/sc/26/rc/1/rc.img)
![rc.img](http://rc.feedsportal.com/r/247394613196/u/197/f/676993/c/35494/s/4e401b4c/sc/26/rc/2/rc.img)
![rc.img](http://rc.feedsportal.com/r/247394613196/u/197/f/676993/c/35494/s/4e401b4c/sc/26/rc/3/rc.img)
![a2.img](http://da.feedsportal.com/r/247394613196/u/197/f/676993/c/35494/s/4e401b4c/sc/26/a2.img)
![ach.img](http://adchoice.feedsportal.com/r/247394613196/u/197/f/676993/c/35494/s/4e401b4c/sc/26/ach.img)
![a2t.img](http://pi.feedsportal.com/r/247394613196/u/197/f/676993/c/35494/s/4e401b4c/sc/26/a2t.img)
![a2t2.img](http://pi2.feedsportal.com/r/247394613196/u/197/f/676993/c/35494/s/4e401b4c/sc/26/a2t2.img)
![mf.gif](http://rss.cnn.com/c/35494/f/676993/s/4e401b4c/sc/26/mf.gif)
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![mf.gif](http://rss.cnn.com/c/35494/f/676993/s/4e401b4c/sc/26/mf.gif)
원문출처 : http://rss.cnn.com/c/35494/f/676993/s/4e401b4c/sc/26/l/0Ledition0Bcnn0N0C20A150C0A30C130Cliving0Cpi0Eday0Ethings0Eto0Eknow0Efeat0Cindex0Bhtml0Deref0Fedition/story01.htm