C13223313311212111133133313331323133313331323113313331333112121121   >>    C1322331331121211113313331333132313331333132311331333133311212112   <<    C13223313311212111133133313331323133313331323113313331333112121123   >>      C13223313311212111133133313331323133313331323113313331333112121122   >>