C13223313311212111133133313331333133313232233133313311232213131   >>    C1322331331121211113313331333133313331323223313331331123221313   <<    C13223313311212111133133313331333133313232233133313311232213133   >>      C13223313311212111133133313331333133313232233133313311232213132   >>