C111123313331323113313331333132313331311331312111133132313331311331322131   >>    C11112331333132311331333133313231333131133131211113313231333131133132213   <<    C111123313331323113313331333132313331311331312111133132313331311331322133   >>      C111123313331323113313331333132313331311331312111133132313331311331322132   >>