#include <bits/stdc++.h>
using namespace std;
int v[100005], b[100005];
int k, n, m, maxim;
int main() {
  cin >> n >> m;
  for (int i = 1; i <= m; i++) {
    int nr;
    cin >> nr;
    b[nr]++;
    v[b[nr]]++;
    if (v[b[nr]] == n)
      cout << 1;
    else
      cout << 0;
  }
}
