C111123313331323113313331323133313331311331311331333132231123231   >>    C11112331333132311331333132313331333131133131133133313223112323   <<    C111123313331323113313331323133313331311331311331333132231123233   >>      C111123313331323113313331323133313331311331311331333132231123232   >>