C31232233133313221211113313331333132313232233133313331211111133132222331   >>    C3123223313331322121111331333133313231323223313331333121111113313222233   <<    C31232233133313221211113313331333132313232233133313331211111133132222333   >>      C31232233133313221211113313331333132313232233133313331211111133132222332   >>