B33113313132313113313223313331323133313223313231333133112111133133313233311231   >>    B3311331313231311331322331333132313331322331323133313311211113313331323331123   <<    B33113313132313113313223313331323133313223313231333133112111133133313233311233   >>      B33113313132313113313223313331323133313223313231333133112111133133313233311232   >>