C111123313121111121111331333133313331331121111113313331333133313232213331321   >>    C11112331312111112111133133313331333133112111111331333133313331323221333132   <<    C111123313121111121111331333133313331331121111113313331333133313232213331323   >>      C111123313121111121111331333133313331331121111113313331333133313232213331322   >>