C1111233131211111211113313331333133313232321333133313331333131232312323331   >>    C111123313121111121111331333133313331323232133313331333133313123231232333   <<    C1111233131211111211113313331333133313232321333133313331333131232312323333   >>      C1111233131211111211113313331333133313232321333133313331333131232312323332   >>