B3311331313231311331322331333132313331322331323133313331313231333131221111   >>    B331133131323131133132233133313231333132233132313331333131323133313122111   <<    B3311331313231311331322331333132313331322331323133313331313231333131221113   >>      B3311331313231311331322331333132313331322331323133313331313231333131221112   >>