C313212111113331323312111133133313331333133313331333133313331333131331123231111   >>    C31321211111333132331211113313331333133313331333133313331333133313133112323111   <<    C313212111113331323312111133133313331333133313331333133313331333131331123231113   >>      C313212111113331323312111133133313331333133313331333133313331333131331123231112   >>