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There’re two problems when shopping in
the shopping market.
1. Not knowing how much the stuff which
one picked cost beyond the limit of money.
2. It takes too long time to checkout due to
too many people buy too many stuff.
The casher could know the total price and settle
accounts by the calculator on the cart.It is easy
Lin,Kuan-You Luo,Song-Yang Chan,Bing-Han Wang,Zhi-Hong
Taichung City, Taiwan
New Taipe, Taiwan