B3311331313231311331322331333132333132311211331333132322331323133311211331111   >>    B331133131323131133132233133313233313231121133133313232233132313331121133111   <<    B3311331313231311331322331333132333132311211331333132322331323133311211331113   >>      B3311331313231311331322331333132333132311211331333132322331323133311211331112   >>