B3311331313231311331322331333132313133313113313113313232233132313331311213221   >>    B331133131323131133132233133313231313331311331311331323223313231333131121322   <<    B3311331313231311331322331333132313133313113313113313232233132313331311213223   >>      B3311331313231311331322331333132313133313113313113313232233132313331311213222   >>