public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  int n , a , temp = 2000000222 ;
  n = in . nextInt ( ) ;
  a = in . nextInt ( ) ;
  if ( n == 1 ) {
    System . out . println ( 0 ) ;
    return ;
  }
  int arr [ ] = new int [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) arr [ i ] = in . nextInt ( ) ;
  Arrays . sort ( arr ) ;
  int temp2 ;
  temp = arr [ n - 2 ] - arr [ 0 ] + Math . min ( Math . abs ( arr [ 0 ] - a ) , Math . abs ( arr [ n - 2 ] - a ) ) ;
  temp2 = arr [ n - 1 ] - arr [ 1 ] + Math . min ( Math . abs ( arr [ 1 ] - a ) , Math . abs ( arr [ n - 1 ] - a ) ) ;
  System . out . println ( Math . min ( temp , temp2 ) ) ;
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; int n , a , temp = 2000000222 ; n = in . nextInt ( ) ; a = in . nextInt ( ) ; if ( n == 1 ) { System . out . println ( 0 ) ; return ; } int arr [ ] = new int [ n ] ; for ( int i = 0 ; i < n ; i ++ ) arr [ i ] = in . nextInt ( ) ; Arrays . sort ( arr ) ; int temp2 ; temp = arr [ n - 2 ] - arr [ 0 ] + Math . min ( Math . abs ( arr [ 0 ] - a ) , Math . abs ( arr [ n - 2 ] - a ) ) ; temp2 = arr [ n - 1 ] - arr [ 1 ] + Math . min ( Math . abs ( arr [ 1 ] - a ) , Math . abs ( arr [ n - 1 ] - a ) ) ; System . out . println ( Math . min ( temp , temp2 ) ) ; }
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