C312322331333132212111133133313113313331333133313113313232233311   >>    C31232233133313221211113313331311331333133313331311331323223331   <<    C312322331333132212111133133313113313331333133313113313232233313   >>      C312322331333132212111133133313113313331333133313113313232233312   >>