A weather strip for the attachment to a periphery of a door frame of a vehicle door by clips, which weather strip is capable of preventing water from leaking into a vehicle compartment through spaces located between the weather strip and the door frame and between the clips. This promotion index value is then used in assigning a prize to the player for their participation in the bingo game. For example, when the displayed screen is an authentication screen, authentication processing is executed by using the acquired user information.