#include <bits/stdc++.h>
using namespace std;
void solve(vector<int> &v, int n, int k) {
  set<int> s;
  for (int i = 0; i < n; i++) s.insert(v[i]);
  if (s.size() >= k) {
    vector<int> res;
    cout << "YES" << endl;
    for (auto x : s) {
      for (int i = 0; i < n; i++) {
        if (x == v[i]) {
          res.push_back(i + 1);
          break;
        }
      }
    }
    for (int i = 0; i < k; i++) {
      cout << res[i] << " ";
    }
    cout << endl;
  } else
    cout << "NO" << endl;
}
int main() {
  int n, k;
  cin >> n >> k;
  vector<int> a(n);
  for (int i = 0; i < n; i++) cin >> a[i];
  solve(a, n, k);
  return 0;
}
