C313212111113331323312111133133313331333131212111133133313133313223321311   >>    C31321211111333132331211113313331333133313121211113313331313331322332131   <<    C313212111113331323312111133133313331333131212111133133313133313223321313   >>      C313212111113331323312111133133313331333131212111133133313133313223321312   >>