C31232233133313221211113313331333132313232233133313331211111133131333121   >>    C3123223313331322121111331333133313231323223313331333121111113313133312   <<    C31232233133313221211113313331333132313232233133313331211111133131333123   >>      C31232233133313221211113313331333132313232233133313331211111133131333122   >>