C1111233131211111211113313331333133313232321333133313331333213123331   >>    C111123313121111121111331333133313331323232133313331333133321312333   <<    C1111233131211111211113313331333133313232321333133313331333213123333   >>      C1111233131211111211113313331333133313232321333133313331333213123332   >>