B3311331313231311331322331333132313331322331323133313231311331211121   >>    B331133131323131133132233133313231333132233132313331323131133121112   <<    B3311331313231311331322331333132313331322331323133313231311331211123   >>      B3311331313231311331322331333132313331322331323133313231311331211122   >>