C1111233133313231133133313331333133313231232313331311331322123121   >>    C111123313331323113313331333133313331323123231333131133132212312   <<    C1111233133313231133133313331333133313231232313331311331322123123   >>      C1111233133313231133133313331333133313231232313331311331322123122   >>