C31232233133313221211113313331333131211113313211232313231133131   >>    C3123223313331322121111331333133313121111331321123231323113313   <<    C31232233133313221211113313331333131211113313211232313231133133   >>      C31232233133313221211113313331333131211113313211232313231133132   >>