C111123313121111121111331333133313331333131233133313311231233133313231313233231   >>    C11112331312111112111133133313331333133313123313331331123123313331323131323323   <<    C111123313121111121111331333133313331333131233133313311231233133313231313233233   >>      C111123313121111121111331333133313331333131233133313311231233133313231313233232   >>