C3132121111133313233121111331333133313331312121111331333132211212233121   >>    C313212111113331323312111133133313331333131212111133133313221121223312   <<    C3132121111133313233121111331333133313331312121111331333132211212233123   >>      C3132121111133313233121111331333133313331312121111331333132211212233122   >>