def f(start, end):
    med = (end-start) // 2 + start
    if (end-start) & 1:
        return cum_Y[end] - cum_Y[med] - (cum_Y[med+1] - cum_Y[start])
    else:
        return cum_Y[end] - cum_Y[med] - (cum_Y[med] - cum_Y[start])
N = int(input())
Y = sorted(map(int, input().split()))
if Y[0] == Y[-1]:
    print(1)
else:
    cum_Y = [0]
    for y in Y:
        cum_Y.append(cum_Y[-1] + y)
    ans = float('inf')
    for i in range(1, N):
        left = f(0, i)
        right = f(i, N)
        ans = min(ans, left + right)
    print(ans)