C31232233133313221211113313331333132313331322121111112211231231211   >>    C3123223313331322121111331333133313231333132212111111221123123121   <<    C31232233133313221211113313331333132313331322121111112211231231213   >>      C31232233133313221211113313331333132313331322121111112211231231212   >>