B3311331313231311331322331333132322331322112331323132322331311331323133311   >>    B331133131323131133132233133313232233132211233132313232233131133132313331   <<    B3311331313231311331322331333132322331322112331323132322331311331323133313   >>      B3311331313231311331322331333132322331322112331323132322331311331323133312   >>