#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, k;
  cin >> n >> k;
  int a[n];
  int count[5005] = {0};
  for (int i = 0; i < n; i++) {
    cin >> a[i];
    count[a[i]]++;
  }
  int c[n];
  int d = 1;
  for (int i = 1; i <= 5000; i++) {
    if (count[i] > k) {
      cout << "NO"
           << "\n";
      return 0;
    }
  }
  cout << "YES"
       << "\n";
  if (k == 1) {
    for (int i = 0; i < n; i++) {
      cout << "1"
           << " ";
    }
  } else {
    for (int i = 1; i <= 5000; i++) {
      for (int j = 0; j < n; j++) {
        if (a[j] == i) {
          c[j] = d;
          d++;
        }
        if (d > k) d = d % k;
      }
    }
    for (int i = 0; i < n; i++) {
      cout << c[i] << " ";
    }
  }
}
