public static void main ( String [ ] args ) throws FileNotFoundException {
  Scanner in = new Scanner ( System . in ) ;
  PrintWriter out = new PrintWriter ( new File ( "output.txt" ) ) ;
  int T = in . nextInt ( ) ;
  for ( int t = 1 ;
  t <= T ;
  t ++ ) {
    int n = in . nextInt ( ) ;
    int k = in . nextInt ( ) ;
    double budget = in . nextDouble ( ) ;
    double [ ] p = new double [ n ] ;
    for ( int i = 0 ;
    i < n ;
    i ++ ) {
      p [ i ] = in . nextDouble ( ) ;
    }
    out . println ( "Case #" + t + ": " + calc ( p , budget ) ) ;
  }
  out . close ( ) ;
}

public static void main ( String [ ] args ) throws FileNotFoundException { Scanner in = new Scanner ( System . in ) ; PrintWriter out = new PrintWriter ( new File ( " output . txt " ) ) ; int T = in . nextInt ( ) ; for ( int t = 1 ; t <= T ; t ++ ) { int n = in . nextInt ( ) ; int k = in . nextInt ( ) ; double budget = in . nextDouble ( ) ; double [ ] p = new double [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { p [ i ] = in . nextDouble ( ) ; } out . println ( " Case ▁ # " + t + " : ▁ " + calc ( p , budget ) ) ; } out . close ( ) ; }
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