C3123121111331312121111331333132313331333133313232212111111331333132212231   >>    C312312111133131212111133133313231333133313331323221211111133133313221223   <<    C3123121111331312121111331333132313331333133313232212111111331333132212233   >>      C3123121111331312121111331333132313331333133313232212111111331333132212232   >>