#include <iostream>
#include <vector>

using namespace std;
using ll = long long;

constexpr int iINF = 1'000'000'000;
constexpr ll llINF = 1'000'000'000'000'000'000;

int main () {
    int N, K; cin >> N >> K;
    vector<int> A(N);
    for (int i = 0; i < N; i++) cin >> A[i];

    // 二分探索で寝る元気度を特定

    auto f = [&](ll x) {
        int count = 0;
        for (int i = 0; i < N; i++) if (A[i] <= x) count++;
        return count <= K;
    };

    ll ok = 1, ng = 1'000'000'000 + 10;
    while (1 < abs(ok - ng)) {
        ll mid = (ok + ng) / 2;
        if (f(mid)) {
            ok = mid;
        }
        else {
            ng = mid;
        }
    }


    vector<int> ans;
    for (int i = 1; i < N; i++) {
        if (A[i - 1] <= ok && ok < A[i]) {
            ans.push_back(i + 1);
        }
    }

    cout << ans.size() << "\n";
    for (int i = 0; i < ans.size(); i++) cout << ans[i] << (i == ans.size() - 1 ? "" : " ");
    cout << "\n";
}