C111123313331323113313331323133313331311331311331333133321233133313331322121   >>    C11112331333132311331333132313331333131133131133133313332123313331333132212   <<    C111123313331323113313331323133313331311331311331333133321233133313331322123   >>      C111123313331323113313331323133313331311331311331333133321233133313331322122   >>