#include<iostream>

 #include<cstdio>

 #include<queue>

 #include<algorithm>

 #include<cmath>

 #include<ctime>

 #include<cstring>

 #define inf 2147483647

 #define For(i,a,b) for(register int i=a;i<=b;i++)

 #define p(a) putchar(a)

 #define g() getchar()

 //by war

 //2017.10.19

 using namespace std;

 int n,m;

 int a[];

 int f[][];

 int Max;

 int ans;

 void in(int &x)

 {

     int y=;

     char c=g();x=;

     while(c<''||c>'')

     {

     if(c=='-')

     y=-;

     c=g();

     }

     while(c<=''&&c>='')x=x*+c-'',c=g();

     x*=y;

 }

 void o(int x)

 {

     if(x<)

     {

         p('-');

         x=-x;

     }

     if(x>)o(x/);

     p(x%+'');

 }

 int main()

 {

          in(m);

          For(jj,,m)

          in(a[jj]);

          For(i,,m)

          f[i][i]=m*a[i];

        For(l,,m-)

           For(i,,m-l)

               f[i][i+l]=max(f[i+][i+l]+a[i]*(m-l),f[i][i+l-]+a[i+l]*(m-l));

      o(f[][m]);

      return ;

 }