public static void main ( String [ ] args ) throws IOException {
  BufferedReader inp = new BufferedReader ( new InputStreamReader ( System . in ) ) ;
  int size = Integer . parseInt ( inp . readLine ( ) ) ;
  String [ ] s1 = inp . readLine ( ) . split ( " " ) ;
  long [ ] given = new long [ size ] ;
  long totalSum = 0 ;
  for ( int i = 0 ;
  i < size ;
  i ++ ) {
    given [ i ] = Integer . parseInt ( s1 [ i ] ) ;
    totalSum += given [ i ] ;
  }
  long each = totalSum / size ;
  long [ ] diff = new long [ size ] ;
  for ( int i = 0 ;
  i < size ;
  i ++ ) {
    diff [ i ] = given [ i ] - each ;
  }
  long sum = Math . abs ( diff [ 0 ] ) ;
  long carry = diff [ 0 ] ;
  for ( int i = 1 ;
  i < size ;
  i ++ ) {
    sum += Math . abs ( diff [ i ] + carry ) ;
    carry = carry + diff [ i ] ;
  }
  System . out . println ( sum ) ;
}

public static void main ( String [ ] args ) throws IOException { BufferedReader inp = new BufferedReader ( new InputStreamReader ( System . in ) ) ; int size = Integer . parseInt ( inp . readLine ( ) ) ; String [ ] s1 = inp . readLine ( ) . split ( " ▁ " ) ; long [ ] given = new long [ size ] ; long totalSum = 0 ; for ( int i = 0 ; i < size ; i ++ ) { given [ i ] = Integer . parseInt ( s1 [ i ] ) ; totalSum += given [ i ] ; } long each = totalSum / size ; long [ ] diff = new long [ size ] ; for ( int i = 0 ; i < size ; i ++ ) { diff [ i ] = given [ i ] - each ; } long sum = Math . abs ( diff [ 0 ] ) ; long carry = diff [ 0 ] ; for ( int i = 1 ; i < size ; i ++ ) { sum += Math . abs ( diff [ i ] + carry ) ; carry = carry + diff [ i ] ; } System . out . println ( sum ) ; }
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