B3311331313231311331322331333132313331322331323133313331333121323113121   >>    B331133131323131133132233133313231333132233132313331333133312132311312   <<    B3311331313231311331322331333132313331322331323133313331333121323113123   >>      B3311331313231311331322331333132313331322331323133313331333121323113122   >>