C13223313311212111133133313331333133313232233133313331333112132223221   >>    C1322331331121211113313331333133313331323223313331333133311213222322   <<    C13223313311212111133133313331333133313232233133313331333112132223223   >>      C13223313311212111133133313331333133313232233133313331333112132223222   >>