C13223313311212111133133313331323133313233313121111331311121221   >>    C1322331331121211113313331333132313331323331312111133131112122   <<    C13223313311212111133133313331323133313233313121111331311121223   >>      C13223313311212111133133313331323133313233313121111331311121222   >>