C13223313311212111133133313331333133313232233133313331333233211331   >>    C1322331331121211113313331333133313331323223313331333133323321133   <<    C13223313311212111133133313331333133313232233133313331333233211333   >>      C13223313311212111133133313331333133313232233133313331333233211332   >>