public static void main ( String args [ ] ) throws Exception {
  Scanner in = new Scanner ( new FileInputStream ( "B-large.in" ) ) ;
  PrintWriter writer = new PrintWriter ( new FileOutputStream ( "B-large.out" ) ) ;
  int T = in . nextInt ( ) ;
  for ( int i = 0 ;
  i < T ;
  i ++ ) {
    int N = in . nextInt ( ) ;
    int M = in . nextInt ( ) ;
    int [ ] [ ] map = new int [ N ] [ M ] ;
    for ( int j = 0 ;
    j < N ;
    j ++ ) {
      for ( int k = 0 ;
      k < M ;
      k ++ ) {
        map [ j ] [ k ] = in . nextInt ( ) ;
      }
    }
    boolean result = check ( map , N , M ) ;
    writer . write ( "Case #" + ( i + 1 ) + ": " ) ;
    writer . println ( result ? "YES" : "NO" ) ;
  }
  in . close ( ) ;
  writer . close ( ) ;
}

public static void main ( String args [ ] ) throws Exception { Scanner in = new Scanner ( new FileInputStream ( " B - large . in " ) ) ; PrintWriter writer = new PrintWriter ( new FileOutputStream ( " B - large . out " ) ) ; int T = in . nextInt ( ) ; for ( int i = 0 ; i < T ; i ++ ) { int N = in . nextInt ( ) ; int M = in . nextInt ( ) ; int [ ] [ ] map = new int [ N ] [ M ] ; for ( int j = 0 ; j < N ; j ++ ) { for ( int k = 0 ; k < M ; k ++ ) { map [ j ] [ k ] = in . nextInt ( ) ; } } boolean result = check ( map , N , M ) ; writer . write ( " Case ▁ # " + ( i + 1 ) + " : ▁ " ) ; writer . println ( result ? " YES " : " NO " ) ; } in . close ( ) ; writer . close ( ) ; }
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