C111123313331323113313331323133313331333132331112111133131133132231221   >>    C11112331333132311331333132313331333133313233111211113313113313223122   <<    C111123313331323113313331323133313331333132331112111133131133132231223   >>      C111123313331323113313331323133313331333132331112111133131133132231222   >>