C13223313311212111133133313331211113313231123313331333132222121   >>    C1322331331121211113313331333121111331323112331333133313222212   <<    C13223313311212111133133313331211113313231123313331333132222123   >>      C13223313311212111133133313331211113313231123313331333132222122   >>