#include <bits/stdc++.h>
using namespace std;
using Int = long long;
constexpr static int mod = 1e9 + 7;
constexpr static int inf = (1 << 30) - 1;
constexpr static Int infll = (1LL << 61) - 1;
int Competitive_Programming =
    (ios_base::sync_with_stdio(false), cin.tie(nullptr),
     cout << fixed << setprecision(15), 0);
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
template <typename A, typename B>
string to_string(pair<A, B> p);
template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p);
template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p);
string to_string(const string &s) { return '"' + s + '"'; }
string to_string(const char *s) { return to_string((string)s); }
string to_string(bool b) { return (b ? "true" : "false"); }
string to_string(vector<bool> v) {
  bool first = true;
  string res = "{";
  for (int i = 0; i < static_cast<int>(v.size()); i++) {
    if (!first) {
      res += ", ";
    }
    first = false;
    res += to_string(v[i]);
  }
  res += "}";
  return res;
}
template <size_t N>
string to_string(bitset<N> v) {
  string res = "";
  for (size_t i = 0; i < N; i++) {
    res += static_cast<char>('0' + v[i]);
  }
  return res;
}
template <typename A>
string to_string(A v) {
  bool first = true;
  string res = "{";
  for (const auto &x : v) {
    if (!first) {
      res += ", ";
    }
    first = false;
    res += to_string(x);
  }
  res += "}";
  return res;
}
template <typename A, typename B>
string to_string(pair<A, B> p) {
  return "(" + to_string(p.first) + ", " + to_string(p.second) + ")";
}
template <typename A, typename B, typename C>
string to_string(tuple<A, B, C> p) {
  return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " +
         to_string(get<2>(p)) + ")";
}
template <typename A, typename B, typename C, typename D>
string to_string(tuple<A, B, C, D> p) {
  return "(" + to_string(get<0>(p)) + ", " + to_string(get<1>(p)) + ", " +
         to_string(get<2>(p)) + ", " + to_string(get<3>(p)) + ")";
}
void debug_out() { cerr << endl; }
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
  cerr << " " << to_string(H);
  debug_out(T...);
}
int main() {
  int N, K;
  cin >> N >> K;
  vector<int> a(N), mex(N, 1);
  string s(N, '0');
  set<int> st, prstup, prstdr;
  map<int, int> mp;
  for (int i = 0; i < N; i++) {
    cin >> a[i];
    st.insert(a[i]);
    prstup.insert(i);
    prstdr.insert(-i);
    mp[a[i]] = i;
  }
  int turn = 0, num = N;
  while (not st.empty()) {
    while (mex.back() == 0) mex.pop_back();
    int mx = *(--st.end()), i = mp[mx], upsz = K, drsz = K;
    st.erase(mx);
    prstup.erase(i);
    prstdr.erase(-i);
    mex[mx] = 0, num--, s[i] = (char)('1' + turn);
    while (not prstup.empty() and upsz > 0) {
      if (prstup.upper_bound(i) == prstup.end()) break;
      int id = *prstup.upper_bound(i);
      if (id >= N or id < 0) break;
      prstup.erase(id);
      prstdr.erase(-id);
      st.erase(a[id]);
      s[id] = (char)('1' + turn), upsz--, num--, mex[a[i]] = 0;
    }
    while (not prstdr.empty() and drsz > 0) {
      if (prstdr.upper_bound(-i) == prstdr.end()) break;
      int id = -*prstdr.upper_bound(-i);
      if (id >= N or id < 0) break;
      prstup.erase(id);
      prstdr.erase(-id);
      st.erase(a[id]);
      s[id] = (char)('1' + turn);
      drsz--, num--;
      mex[a[i]] = 0;
    }
    turn ^= 1;
  }
  cout << s << "\n";
}
