C111123313121111121111331323133313331333132333131133133313331333121111123232321   >>    C11112331312111112111133132313331333133313233313113313331333133312111112323232   <<    C111123313121111121111331323133313331333132333131133133313331333121111123232323   >>      C111123313121111121111331323133313331333132333131133133313331333121111123232322   >>