Interactive wagering systems and methods for automatically providing information related to wagering to a user are provided. The magnetic bed device includes a plurality of magnets that produce a negative magnetic field in a region adjacent the surface, and a positive magnetic field in a region remote from the surface. Moreover, the RNAi effects can be exerted effectively by transferring a transcriptional product into the cytoplasm, using a pol II-type promoter. It also provides cost surface modeling to speed up the optimization. When the paper money additionally input to the second input unit is moved to the first input unit and joined with the paper money, the support plate supports the paper money by a pressing force in the direction reverse to a pressing force by the operator. In addition, a dome extends from the peripheral bearing area to the apex located essentially on the central axis and grooves extend radially between the apron and the dome, the grooves having a base line.