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in&out is a business card cycling machine. After inputing message into computer it would erase the original message and print on user's information.Thus others' cards can be reused as your own business cards and paper could be saved.Only a small amount of cards can be used as currency in the cycling.Also,there are a lot of options offered to users so that the user can choose various mode based on different occasions.
Zhening Luo, Sisi Xu, Sisi Yuan, Manqian Qian, Shiyi Shao, Yu Pan, Chenling Ouyang, Fangyuan Wu, Fan Chen, Zhenyu Lin, Xin Sun