#include <iostream>
#include <fstream>
#define LL long long
using namespace std;

LL v[1000];
LL b[1024][1024];
int n;

int main()
{
    ifstream f("podm.in");
    ofstream g("podm.out");

    f>>n;
    for(int i=0; i<=n;  i++)
    {
        f>>v[i];
        cout<<v[i]<<" ";
    }
    for(int i=0; i<n-1; i++)
    {
        b[i][i+2]=v[i]*v[i+1]*v[i+2];
    }
    for (int lg=3; lg<=n; lg++)
        for (int i=0; i+lg<=n; i++)
        {
            int j=i+lg;
            LL bst=(1LL<<60);
            for (int k=i+1; k<j; k++)
                bst=min(bst,b[i][k]+b[k][j]+v[i]*v[k]*v[j]);
                b[i][j]=bst;
        }
        g<<b[0][n];
    return 0;
}