C111123313331323113313331333132313331311331312111133133311231211211   >>    C11112331333132311331333133313231333131133131211113313331123121121   <<    C111123313331323113313331333132313331311331312111133133311231211213   >>      C111123313331323113313331333132313331311331312111133133311231211212   >>