C13223313311212111133133313331323133313233313121111331333132213231221   >>    C1322331331121211113313331333132313331323331312111133133313221323122   <<    C13223313311212111133133313331323133313233313121111331333132213231223   >>      C13223313311212111133133313331323133313233313121111331333132213231222   >>