public static void main ( String ... orange ) throws Exception {
  Scanner input = new Scanner ( System . in ) ;
  int numCases = input . nextInt ( ) ;
  for ( int n = 0 ;
  n < numCases ;
  n ++ ) {
    N = input . nextInt ( ) ;
    int [ ] nums = new int [ N ] ;
    int sum = 0 ;
    for ( int i = 0 ;
    i < N ;
    i ++ ) {
      nums [ i ] = input . nextInt ( ) ;
      sum += nums [ i ] ;
    }
    List < String > steps = new ArrayList < String > ( ) ;
    while ( sum > 0 ) {
      String s = "" ;
      s += add ( nums , false ) ;
      s += add ( nums , true ) ;
      steps . add ( s ) ;
      sum -= s . length ( ) ;
    }
    System . out . printf ( "Case #%d:" , n + 1 ) ;
    for ( String s : steps ) System . out . print ( " " + s ) ;
    System . out . println ( ) ;
  }
}

public static void main ( String ... orange ) throws Exception { Scanner input = new Scanner ( System . in ) ; int numCases = input . nextInt ( ) ; for ( int n = 0 ; n < numCases ; n ++ ) { N = input . nextInt ( ) ; int [ ] nums = new int [ N ] ; int sum = 0 ; for ( int i = 0 ; i < N ; i ++ ) { nums [ i ] = input . nextInt ( ) ; sum += nums [ i ] ; } List < String > steps = new ArrayList < String > ( ) ; while ( sum > 0 ) { String s = " " ; s += add ( nums , false ) ; s += add ( nums , true ) ; steps . add ( s ) ; sum -= s . length ( ) ; } System . out . printf ( " Case ▁ # % d : " , n + 1 ) ; for ( String s : steps ) System . out . print ( " ▁ " + s ) ; System . out . println ( ) ; } }
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