B3311331313231311331322331333131133132333132333133313223313231121132321   >>    B331133131323131133132233133313113313233313233313331322331323112113232   <<    B3311331313231311331322331333131133132333132333133313223313231121132323   >>      B3311331313231311331322331333131133132333132333133313223313231121132322   >>