import java.io.*;
import java.util.*;

public class Swordfish {
    public static void main(String[] args) throws Exception {
        new Main().run();
    }
}

class Main {

    BufferedReader reader;
    StringTokenizer st;
    PrintWriter out;

    Integer n, cnt;
    Integer[] place, answer;

    void run() throws Exception {
        out = new PrintWriter(new FileWriter("race.out"));
        reader = new BufferedReader(new FileReader("race.in"));

        n = Integer.decode(reader.readLine());
        place = new Integer[n];
        answer = new Integer[n];
        cnt = 0;
        answer[cnt++] = n - 1;

        st = new StringTokenizer(reader.readLine());

        for (int i = 0; i < n; i++) {
            place[i] = Integer.decode(st.nextToken()) - 1;
        }

        int m = place[n - 1];

        for (int k = n - 2; k >= 0; k--) {

            if (m == k + 1) {
                answer[cnt++] = k;
            }

            if (place[k] < m)
                m = place[k];
        }

        out.printf("%d%n", cnt);

        for (int i = cnt - 1; i >= 0; i--)
            out.printf("%d ", answer[i] + 1);

        out.printf("%n");

        reader.close();
        out.close();
    }
}