C13332313311211113313331333133313331323233121111331333133321233132212121   >>    C1333231331121111331333133313331333132323312111133133313332123313221212   <<    C13332313311211113313331333133313331323233121111331333133321233132212123   >>      C13332313311211113313331333133313331323233121111331333133321233132212122   >>