C111123313121111121111331333133313331323232133313331333121111331123232321   >>    C11112331312111112111133133313331333132323213331333133312111133112323232   <<    C111123313121111121111331333133313331323232133313331333121111331123232323   >>      C111123313121111121111331333133313331323232133313331333121111331123232322   >>