C1111233131211111211113313331333133313331333133313331333133313331323112223111   >>    C111123313121111121111331333133313331333133313331333133313331333132311222311   <<    C1111233131211111211113313331333133313331333133313331333133313331323112223113   >>      C1111233131211111211113313331333133313331333133313331333133313331323112223112   >>