public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  int T = in . nextInt ( ) ;
  for ( int t = 0 ;
  t < T ;
  t ++ ) {
    int N = in . nextInt ( ) ;
    Integer [ ] A = new Integer [ N ] ;
    int sum = 0 ;
    for ( int n = 0 ;
    n < N ;
    n ++ ) {
      int a = in . nextInt ( ) ;
      sum += a ;
      A [ n ] = a ;
    }
    if ( sum == 0 ) {
      System . out . println ( "NO" ) ;
    }
    else {
      Arrays . sort ( A ) ;
      if ( sum > 0 ) {
        Collections . reverse ( Arrays . asList ( A ) ) ;
      }
      StringBuilder output = new StringBuilder ( ) ;
      output . append ( "YES\n" ) ;
      for ( int n = 0 ;
      n < N ;
      n ++ ) {
        output . append ( A [ n ] ) . append ( ' ' ) ;
      }
      System . out . println ( output ) ;
    }
  }
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; int T = in . nextInt ( ) ; for ( int t = 0 ; t < T ; t ++ ) { int N = in . nextInt ( ) ; Integer [ ] A = new Integer [ N ] ; int sum = 0 ; for ( int n = 0 ; n < N ; n ++ ) { int a = in . nextInt ( ) ; sum += a ; A [ n ] = a ; } if ( sum == 0 ) { System . out . println ( " NO " ) ; } else { Arrays . sort ( A ) ; if ( sum > 0 ) { Collections . reverse ( Arrays . asList ( A ) ) ; } StringBuilder output = new StringBuilder ( ) ; output . append ( " YES \n " ) ; for ( int n = 0 ; n < N ; n ++ ) { output . append ( A [ n ] ) . append ( ' ▁ ' ) ; } System . out . println ( output ) ; } } }
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