from itertools import accumulate
N = int(input())
Y = list(map(int, input().split()))
if len(set(Y)) == 1:
    print(1)
    exit()

Y.sort()

Z = [0] + list(accumulate(Y))
left = [0] * N
for i in range(1, N + 1):
    m = (i + 1) // 2
    median = Y[m - 1]
    d = median * (m - 1) - Z[m - 1]
    d += (Z[i] - Z[m]) - (i - m) * median
    left[i - 1] = d

Y.reverse()
Z = [0] + list(accumulate(Y))
right = [0] * N
for i in range(1, N + 1):
    m = (i + 1) // 2
    median = Y[m - 1]
    d = Z[m - 1] - median * (m - 1)
    d += (i - m) * median - (Z[i] - Z[m])
    right[i - 1] = d
right.reverse()

ans = min(a + b for a, b in zip(left[:-1], right[1:]))
print(ans)