C313212111113331323312111133133313331333133313331333133313331311331322233321   >>    C31321211111333132331211113313331333133313331333133313331333131133132223332   <<    C313212111113331323312111133133313331333133313331333133313331311331322233323   >>      C313212111113331323312111133133313331333133313331333133313331311331322233322   >>