C31232233133313221211113313331333132313232233133313331211111333131121212333321   >>    C3123223313331322121111331333133313231323223313331333121111133313112121233332   <<    C31232233133313221211113313331333132313232233133313331211111333131121212333323   >>      C31232233133313221211113313331333132313232233133313331211111333131121212333322   >>