B3311331313231311331322331333132313331322331323133313331311222121311   >>    B331133131323131133132233133313231333132233132313331333131122212131   <<    B3311331313231311331322331333132313331322331323133313331311222121313   >>      B3311331313231311331322331333132313331322331323133313331311222121312   >>