C111123313121111121111331333133313331333131233133313113313331323213233111   >>    C11112331312111112111133133313331333133313123313331311331333132321323311   <<    C111123313121111121111331333133313331333131233133313113313331323213233113   >>      C111123313121111121111331333133313331333131233133313113313331323213233112   >>