C31232233133313221211113313331333133313113311331211113313132311   >>    C3123223313331322121111331333133313331311331133121111331313231   <<    C31232233133313221211113313331333133313113311331211113313132313   >>      C31232233133313221211113313331333133313113311331211113313132312   >>