def main():
    N = int(input())
    A = list(map(int, input().split()))

    B = [(A[i], i) for i in range(N)]
    B.sort(key = lambda x: x[0], reverse = True)

    DP = [[0] * (N + 1) for _ in range(N + 1)]

    for i, b in enumerate(B):
        a = b[0]
        tmp = b[1]
        for x in range(i + 1):
            DP[x + 1][i - x] = max(DP[x + 1][i - x], DP[x][i - x] + a * abs(tmp - x))
            DP[x][i - x + 1] = max(DP[x][i - x + 1], DP[x][i - x] + a * abs((N - tmp - 1) - (i - x)))

    ans = 0
    for i in range(N + 1):
        ans = max(ans, DP[i][N - i])

    print (ans)

    # for tmp in DP:
    #     print (tmp)

if __name__ == '__main__':
    main()