C13223313311212111133133313331323133313233313121111331323233111   >>    C1322331331121211113313331333132313331323331312111133132323311   <<    C13223313311212111133133313331323133313233313121111331323233113   >>      C13223313311212111133133313331323133313233313121111331323233112   >>