B132333131333131232313331311211331323223313233313331323133313223313211   >>    B13233313133313123231333131121133132322331323331333132313331322331321   <<    B132333131333131232313331311211331323223313233313331323133313223313213   >>      B132333131333131232313331311211331323223313233313331323133313223313212   >>