N = int(input())
lsY = list(map(int,input().split()))
lsY.sort()

m1 = lsY[0]
m2 = lsY[(N//2)]

v1 = 0
v2 = sum([abs(lsY[i]-m2) for i in range(1,N)])
ans = v1+v2

for i in range(N-2):
    m1n = lsY[(i+1)//2]
    m2n = lsY[(N+i+1)//2]
    v1 += (m1n-m1)*((i+1)//2)-(m1n-m1)*(i+1-(i+1)//2)+(lsY[i+1]-m1n)
    v2 += (m2n-m2)*(N//2-1-(i+1)//2)-(m2n-m2)*(N//2-(i+1)//2)-(m2-lsY[i+1])
    m1 = m1n
    m2 = m2n
    ans = min(ans,v1+v2)

if len(set(lsY)) == 1:
    print(1)
else:
    print(ans)