C1111233131211111211113313331333133313232313331333131323132321113321   >>    C111123313121111121111331333133313331323231333133313132313232111332   <<    C1111233131211111211113313331333133313232313331333131323132321113323   >>      C1111233131211111211113313331333133313232313331333131323132321113322   >>