C13223313311212111133133313331333133313232233133313311232211331   >>    C1322331331121211113313331333133313331323223313331331123221133   <<    C13223313311212111133133313331333133313232233133313311232211333   >>      C13223313311212111133133313331333133313232233133313311232211332   >>