C1111133313331323223313331333133313331333231333132112313331311312121   >>    C111113331333132322331333133313331333133323133313211231333131131212   <<    C1111133313331323223313331333133313331333231333132112313331311312123   >>      C1111133313331323223313331333133313331333231333132112313331311312122   >>