C1111233131211111211113313331333133313331333133313331333133313222111321   >>    C111123313121111121111331333133313331333133313331333133313331322211132   <<    C1111233131211111211113313331333133313331333133313331333133313222111323   >>      C1111233131211111211113313331333133313331333133313331333133313222111322   >>