n=int(input())
a=list(map(int,input().split()));a.sort()
if len(set(a))==1:
	print(1);exit()
x=[0];ans=1<<60
for i in a:
    x.append(x[-1]+i)
for i in range(1,n):
    c=(n-i+1)//2+i
    d=(i+1)//2
    ans=min(ans,x[i]-x[d]-a[d-1]*(i-d)+d*a[d-1]-x[d]+a[c-1]*(c-i)-x[c]+x[i]+x[-1]-x[c]-a[c-1]*(n-c))
print(ans)