C3123223313331322121111331333133313331311331133133313331312111113122321   >>    C312322331333132212111133133313331333131133113313331333131211111312232   <<    C3123223313331322121111331333133313331311331133133313331312111113122323   >>      C3123223313331322121111331333133313331311331133133313331312111113122322   >>