n = gets.to_i
v = gets.split.map(&:to_i)
dp = {}
dp[0] = 0
dp[1] = v[0]

stack = Hash.new do |h,k|
    h[k] = []
end
stack[0] = []
stack[1] = [1]

(2..n).each do |i|
    if dp[i-1] > v[i - 1] + dp[i - 2]
        dp[i] = dp[i-1]
        stack[i] = stack[i-1] + []
    else
        dp[i] = v[i - 1] + dp[i - 2]
        stack[i] = stack[i-2] + [i]
    end
end

puts dp[n]
puts stack[n].join(' ')