B3311331313231311331322331333132313331322331323133313331311223132233121   >>    B331133131323131133132233133313231333132233132313331333131122313223312   <<    B3311331313231311331322331333132313331322331323133313331311223132233123   >>      B3311331313231311331322331333132313331322331323133313331311223132233122   >>