C31232233133313221211113313331333133313331212111113331333131311312121   >>    C3123223313331322121111331333133313331333121211111333133313131131212   <<    C31232233133313221211113313331333133313331212111113331333131311312123   >>      C31232233133313221211113313331333133313331212111113331333131311312122   >>