C13332313311211113313331333133313331322333133313331333133313233231323211   >>    C1333231331121111331333133313331333132233313331333133313331323323132321   <<    C13332313311211113313331333133313331322333133313331333133313233231323213   >>      C13332313311211113313331333133313331322333133313331333133313233231323212   >>