B3311331313231311331322331333132313331322331323133313331323132211213231323321   >>    B331133131323131133132233133313231333132233132313331333132313221121323132332   <<    B3311331313231311331322331333132313331322331323133313331323132211213231323323   >>      B3311331313231311331322331333132313331322331323133313331323132211213231323322   >>