C31232233133313221211113313331333132313331322121111123121111331322332131   >>    C3123223313331322121111331333133313231333132212111112312111133132233213   <<    C31232233133313221211113313331333132313331322121111123121111331322332133   >>      C31232233133313221211113313331333132313331322121111123121111331322332132   >>