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Take-out coffee shops are in vogue all over the world.
You might have had an experience that you couldn't decide what to order when you
went to a coffee shop.
There are so many kinds of coffee.
"1+1=1cup" can be the solution to that problem.
Now filling the cup with two different kinds of coffee is possible.
HONGIK UNIVERSITY
CHUNGCHEONGNAM-DO, South Korea
YOUNG WAN,YANG
Seung yeon Ryu
Gyeonggi-do, South Korea
SEUNG YEON,RYU JUN MI,LEE HYE MIN,JEONG MIN KYUNG,LEE
