C1111233131211111211113313331333133313331333133313331333133313232222122331   >>    C111123313121111121111331333133313331333133313331333133313331323222212233   <<    C1111233131211111211113313331333133313331333133313331333133313232222122333   >>      C1111233131211111211113313331333133313331333133313331333133313232222122332   >>