#include <bits/stdc++.h>
using namespace std;
const int maxn = 3e+5;
bool vis[maxn];
int main() {
  int T, n, m, l;
  cin.sync_with_stdio(false);
  cout.sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  while (cin >> n) {
    memset(vis, false, sizeof vis);
    int pos = n;
    int now = 0;
    cout << "1 ";
    for (int i = 0; i < n; i++) {
      int x;
      cin >> x;
      now++;
      vis[x] = true;
      while (vis[pos]) {
        pos--;
        now--;
      }
      cout << now + 1 << ' ';
    }
    cout << endl;
  }
  return 0;
}
