C13223313311212111133133313331312111133133313331323133313221221   >>    C1322331331121211113313331333131211113313331333132313331322122   <<    C13223313311212111133133313331312111133133313331323133313221223   >>      C13223313311212111133133313331312111133133313331323133313221222   >>