B3311331313231311331322331333132313232233131311331333131333132313232222131   >>    B331133131323131133132233133313231323223313131133133313133313231323222213   <<    B3311331313231311331322331333132313232233131311331333131333132313232222133   >>      B3311331313231311331322331333132313232233131311331333131333132313232222132   >>