C111123313331323113313331323133313331311331311331323133313222121   >>    C11112331333132311331333132313331333131133131133132313331322212   <<    C111123313331323113313331323133313331311331311331323133313222123   >>      C111123313331323113313331323133313331311331311331323133313222122   >>