N = int(raw_input())

data = map(int, raw_input().split())

if N == 1:
    print data[0]
    print 1
    exit()

dp = [0] * N

dp[0] = data[0]
dp[1] = max(dp[0], data[1])

for i in xrange(2, N):
    dp[i] = max(dp[i - 2] + data[i], dp[i - 1])

print dp[-1]

choice = []

for k in xrange(N - 1, 1, -1):
    if dp[k] - dp[k - 2] == data[k]:
        choice.append(k + 1)
        dp[k - 1] = 0

if dp[1] == data[1]:
    choice.append(2)
elif dp[0] == data[0]:
    choice.append(1)

choice.reverse()

print " ".join(map(str, choice))