C3123223313331322121111331333133313231323331211113313113313222221   >>    C312322331333132212111133133313331323132333121111331311331322222   <<    C3123223313331322121111331333133313231323331211113313113313222223   >>      C3123223313331322121111331333133313231323331211113313113313222222   >>