B3311331313231311331322331333132233131133132233133313231333132212111113132231   >>    B331133131323131133132233133313223313113313223313331323133313221211111313223   <<    B3311331313231311331322331333132233131133132233133313231333132212111113132233   >>      B3311331313231311331322331333132233131133132233133313231333132212111113132232   >>