B3311331313231311331322331333132313331323223312113313331333131232321   >>    B331133131323131133132233133313231333132322331211331333133313123232   <<    B3311331313231311331322331333132313331323223312113313331333131232323   >>      B3311331313231311331322331333132313331323223312113313331333131232322   >>