C111113331333132322331333133313331333133313121111331333121111331331123231323111   >>    C11111333133313232233133313331333133313331312111133133312111133133112323132311   <<    C111113331333132322331333133313331333133313121111331333121111331331123231323113   >>      C111113331333132322331333133313331333133313121111331333121111331331123231323112   >>