C313212111113331323312111133133313331333133313331333133313331333133313222233321   >>    C31321211111333132331211113313331333133313331333133313331333133313331322223332   <<    C313212111113331323312111133133313331333133313331333133313331333133313222233323   >>      C313212111113331323312111133133313331333133313331333133313331333133313222233322   >>