import sequtils,strutils,algorithm,math,sugar,macros,strformat

proc getchar_unlocked():char {. importc:"getchar_unlocked",header: "<stdio.h>" .}
proc scan(): int =
  var minus = false
  while true:
    var k = getchar_unlocked()
    if k == '-' : minus = true
    elif k < '0' or k > '9': break
    else: result = 10 * result + k.ord - '0'.ord
  if minus: result *= -1

let n = scan()
let Y0 = newSeqWith(n,scan()).sorted(cmp)
let Y = Y0.mapIt(it - Y0[0])
var preY = Y[0]
var ans = Y.sum()
for i,y in Y:
  let diff = y - preY
  if diff == 0: continue
  let w = 2 * i - n
  if w >= 0 : break
  ans += diff * w
  preY = y
echo ans