C31232233133313221211113313331333132313232233133313331211111133132213321221   >>    C3123223313331322121111331333133313231323223313331333121111113313221332122   <<    C31232233133313221211113313331333132313232233133313331211111133132213321223   >>      C31232233133313221211113313331333132313232233133313331211111133132213321222   >>