C13223313311212111133133313331323133313233313121111133313231121132213121   >>    C1322331331121211113313331333132313331323331312111113331323112113221312   <<    C13223313311212111133133313331323133313233313121111133313231121132213123   >>      C13223313311212111133133313331323133313233313121111133313231121132213122   >>