C3123223313331322121111331333133313331333121211113313232221233131232321   >>    C312322331333132212111133133313331333133312121111331323222123313123232   <<    C3123223313331322121111331333133313331333121211113313232221233131232323   >>      C3123223313331322121111331333133313331333121211113313232221233131232322   >>