C13223313311212111133133313331333132333132312111133132313221321   >>    C1322331331121211113313331333133313233313231211113313231322132   <<    C13223313311212111133133313331333132333132312111133132313221323   >>      C13223313311212111133133313331333132333132312111133132313221322   >>