C31232233133313221211113313331333132313331322121133133313223331231   >>    C3123223313331322121111331333133313231333132212113313331322333123   <<    C31232233133313221211113313331333132313331322121133133313223331233   >>      C31232233133313221211113313331333132313331322121133133313223331232   >>