C313212111113331323312111133133313331333133313331333133313331311221123231231   >>    C31321211111333132331211113313331333133313331333133313331333131122112323123   <<    C313212111113331323312111133133313331333133313331333133313331311221123231233   >>      C313212111113331323312111133133313331333133313331333133313331311221123231232   >>