public static void main ( String [ ] args ) {
  Scanner s = new Scanner ( System . in ) ;
  int t = s . nextInt ( ) ;
  for ( int k = 0 ;
  k < t ;
  k ++ ) {
    int n = s . nextInt ( ) ;
    int m = s . nextInt ( ) ;
    int x1 = s . nextInt ( ) ;
    int y1 = s . nextInt ( ) ;
    int x2 = s . nextInt ( ) ;
    int y2 = s . nextInt ( ) ;
    int x = Math . abs ( x1 - x2 ) ;
    int y = Math . abs ( y1 - y2 ) ;
    long sum = ( long ) n * m - ( long ) ( n - x ) * ( m - y ) * 2 ;
    x = n - 2 * x ;
    y = m - 2 * y ;
    if ( x > 0 && y > 0 ) sum += ( long ) x * y ;
    System . out . println ( sum ) ;
  }
}

public static void main ( String [ ] args ) { Scanner s = new Scanner ( System . in ) ; int t = s . nextInt ( ) ; for ( int k = 0 ; k < t ; k ++ ) { int n = s . nextInt ( ) ; int m = s . nextInt ( ) ; int x1 = s . nextInt ( ) ; int y1 = s . nextInt ( ) ; int x2 = s . nextInt ( ) ; int y2 = s . nextInt ( ) ; int x = Math . abs ( x1 - x2 ) ; int y = Math . abs ( y1 - y2 ) ; long sum = ( long ) n * m - ( long ) ( n - x ) * ( m - y ) * 2 ; x = n - 2 * x ; y = m - 2 * y ; if ( x > 0 && y > 0 ) sum += ( long ) x * y ; System . out . println ( sum ) ; } }
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