B3311331313231311331322331333132333132311211331333132322331323133311211111   >>    B331133131323131133132233133313233313231121133133313232233132313331121111   <<    B3311331313231311331322331333132333132311211331333132322331323133311211113   >>      B3311331313231311331322331333132333132311211331333132322331323133311211112   >>