C1111233133313231133133313331333133313231232313331311331322231333121   >>    C111123313331323113313331333133313331323123231333131133132223133312   <<    C1111233133313231133133313331333133313231232313331311331322231333123   >>      C1111233133313231133133313331333133313231232313331311331322231333122   >>