C313212111113331323312111133133313331333133313331333133313113313223221   >>    C31321211111333132331211113313331333133313331333133313331311331322322   <<    C313212111113331323312111133133313331333133313331333133313113313223223   >>      C313212111113331323312111133133313331333133313331333133313113313223222   >>