//set many funcs template
//Ver.20190820
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<stdbool.h>
#include<time.h>
#include<assert.h>
#define inf 1072114514
#define llinf 4154118101919364364
#define mod 1000000007
#define pi 3.1415926535897932384
#define size 64

long long llmax(long long a,long long b){if(a>b){return a;}return b;}
int llsortfncsj(const void *a,const void *b){if(*(long long *)a>*(long long *)b){return 1;}if(*(long long *)a==*(long long *)b){return 0;}return -1;}

int main(void){
  long long i,j,n,m,k,a[size],b,c,h,w,r=0,l,t;
  long long rw[size]={0};
  long long st,fi,te;
  scanf("%lld",&n);
  for(i=1;i<=n;i++){
    scanf("%lld",&a[i]);
  }
  qsort(&a[1],n,sizeof(long long),llsortfncsj);

  for(i=1;i<=n;i++){rw[i]=rw[i-1]+a[i];}

  if(n<=2){puts("0");return 0;}

  for(i=2;i<=n-1;i++){
    st=1;fi=(i-1);
    while(st<=fi){
      te=(st+fi)/2;
      if(a[n+1-te]+a[i-te]-2*a[i]<0){fi=te-1;}
      else{st=te+1;}
    }
    w=(rw[i]-rw[i-fi-1])+(rw[n]-rw[n-fi]);
    r=llmax(w-(2*fi+1)*a[i],r);
  }
  printf("%lld\n",r);
  return 0;
}