C31232233133313221211113313331333133313331212111113232112323311   >>    C3123223313331322121111331333133313331333121211111323211232331   <<    C31232233133313221211113313331333133313331212111113232112323313   >>      C31232233133313221211113313331333133313331212111113232112323312   >>