B3311331313231311331322331333132333131333132233133313232233132313331322131   >>    B331133131323131133132233133313233313133313223313331323223313231333132213   <<    B3311331313231311331322331333132333131333132233133313232233132313331322133   >>      B3311331313231311331322331333132333131333132233133313232233132313331322132   >>