C111113331333132322331333133313331333133313121111331331123131121   >>    C11111333133313232233133313331333133313331312111133133112313112   <<    C111113331333132322331333133313331333133313121111331331123131123   >>      C111113331333132322331333133313331333133313121111331331123131122   >>