C31232233133313221211113313331333133313331212111113331313231311331333132322131   >>    C3123223313331322121111331333133313331333121211111333131323131133133313232213   <<    C31232233133313221211113313331333133313331212111113331313231311331333132322133   >>      C31232233133313221211113313331333133313331212111113331313231311331333132322132   >>