public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  int T = in . nextInt ( ) ;
  for ( int index = 1 ;
  index <= T ;
  index ++ ) {
    System . out . println ( "Case #" + index + ":" ) ;
    double D = in . nextDouble ( ) ;
    int N = in . nextInt ( ) ;
    int A = in . nextInt ( ) ;
    double [ ] time = new double [ N + 1 ] ;
    double [ ] pos = new double [ N + 1 ] ;
    for ( int i = 1 ;
    i <= N ;
    i ++ ) {
      time [ i ] = in . nextDouble ( ) ;
      pos [ i ] = in . nextDouble ( ) ;
    }
    for ( int acc = 0 ;
    acc < A ;
    acc ++ ) {
      double a = in . nextDouble ( ) ;
      double startmovingat = 0 ;
      for ( int i = 1 ;
      i < N ;
      i ++ ) {
        startmovingat = Math . max ( startmovingat , time [ i ] - Math . sqrt ( 2 * pos [ i ] / a ) ) ;
      }
      double effectivetime = time [ N - 1 ] + ( time [ N ] - time [ N - 1 ] ) / ( pos [ N ] - pos [ N - 1 ] ) * ( D - pos [ N - 1 ] ) ;
      startmovingat = Math . max ( startmovingat , effectivetime - Math . sqrt ( 2 * D / a ) ) ;
      System . out . println ( Math . max ( effectivetime , startmovingat + Math . sqrt ( 2 * D / a ) ) ) ;
    }
  }
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; int T = in . nextInt ( ) ; for ( int index = 1 ; index <= T ; index ++ ) { System . out . println ( " Case ▁ # " + index + " : " ) ; double D = in . nextDouble ( ) ; int N = in . nextInt ( ) ; int A = in . nextInt ( ) ; double [ ] time = new double [ N + 1 ] ; double [ ] pos = new double [ N + 1 ] ; for ( int i = 1 ; i <= N ; i ++ ) { time [ i ] = in . nextDouble ( ) ; pos [ i ] = in . nextDouble ( ) ; } for ( int acc = 0 ; acc < A ; acc ++ ) { double a = in . nextDouble ( ) ; double startmovingat = 0 ; for ( int i = 1 ; i < N ; i ++ ) { startmovingat = Math . max ( startmovingat , time [ i ] - Math . sqrt ( 2 * pos [ i ] / a ) ) ; } double effectivetime = time [ N - 1 ] + ( time [ N ] - time [ N - 1 ] ) / ( pos [ N ] - pos [ N - 1 ] ) * ( D - pos [ N - 1 ] ) ; startmovingat = Math . max ( startmovingat , effectivetime - Math . sqrt ( 2 * D / a ) ) ; System . out . println ( Math . max ( effectivetime , startmovingat + Math . sqrt ( 2 * D / a ) ) ) ; } } }
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