B3311331313231311331322331333132313331322331323133313331322121111112231221   >>    B331133131323131133132233133313231333132233132313331333132212111111223122   <<    B3311331313231311331322331333132313331322331323133313331322121111112231223   >>      B3311331313231311331322331333132313331322331323133313331322121111112231222   >>