C13332313311211113313331333133313331323132233132313231333133313113322121   >>    C1333231331121111331333133313331333132313223313231323133313331311332212   <<    C13332313311211113313331333133313331323132233132313231333133313113322123   >>      C13332313311211113313331333133313331323132233132313231333133313113322122   >>