C1111233131211111211113313331333133313232313331333131323132321111211   >>    C111123313121111121111331333133313331323231333133313132313232111121   <<    C1111233131211111211113313331333133313232313331333131323132321111213   >>      C1111233131211111211113313331333133313232313331333131323132321111212   >>