B3311331313231311331322331333132313331322331323133313331322113233111   >>    B331133131323131133132233133313231333132233132313331333132211323311   <<    B3311331313231311331322331333132313331322331323133313331322113233113   >>      B3311331313231311331322331333132313331322331323133313331322113233112   >>