C313212111113331323312111133133313331333133313331333133313331333133313221231311   >>    C31321211111333132331211113313331333133313331333133313331333133313331322123131   <<    C313212111113331323312111133133313331333133313331333133313331333133313221231313   >>      C313212111113331323312111133133313331333133313331333133313331333133313221231312   >>