C312322331333132212111133133313331333133312121111123231333132332211   >>    C31232233133313221211113313331333133313331212111112323133313233221   <<    C312322331333132212111133133313331333133312121111123231333132332213   >>      C312322331333132212111133133313331333133312121111123231333132332212   >>