C13223313311212111133133313331323133313331323131133133313223311112121   >>    C1322331331121211113313331333132313331333132313113313331322331111212   <<    C13223313311212111133133313331323133313331323131133133313223311112123   >>      C13223313311212111133133313331323133313331323131133133313223311112122   >>