C111123313331323113313331323133313331311331311331333133313232111131211   >>    C11112331333132311331333132313331333131133131133133313331323211113121   <<    C111123313331323113313331323133313331311331311331333133313232111131213   >>      C111123313331323113313331323133313331311331311331333133313232111131212   >>