C13332313311211113313331333133313331322333133313331333133321133132233322121   >>    C1333231331121111331333133313331333132233313331333133313332113313223332212   <<    C13332313311211113313331333133313331322333133313331333133321133132233322123   >>      C13332313311211113313331333133313331322333133313331333133321133132233322122   >>