B3311331313231311331322331333132313331322331323133313331333112133313232221111   >>    B331133131323131133132233133313231333132233132313331333133311213331323222111   <<    B3311331313231311331322331333132313331322331323133313331333112133313232221113   >>      B3311331313231311331322331333132313331322331323133313331333112133313232221112   >>