B3311331313231311331322331333132313233313232233133313113313113323321   >>    B331133131323131133132233133313231323331323223313331311331311332332   <<    B3311331313231311331322331333132313233313232233133313113313113323323   >>      B3311331313231311331322331333132313233313232233133313113313113323322   >>