B3311331313231311331322331333132313331323223312113313331333133312113121   >>    B331133131323131133132233133313231333132322331211331333133313331211312   <<    B3311331313231311331322331333132313331323223312113313331333133312113123   >>      B3311331313231311331322331333132313331323223312113313331333133312113122   >>