C111123313121111121111331333133313331333131233133313121111121111331323221132321   >>    C11112331312111112111133133313331333133313123313331312111112111133132322113232   <<    C111123313121111121111331333133313331333131233133313121111121111331323221132323   >>      C111123313121111121111331333133313331333131233133313121111121111331323221132322   >>