#include <bits/stdc++.h>
using namespace std;
int a[300001];
int m, n, res = 1, x;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  cin >> n;
  m = n;
  printf("1 ");
  for (int i = 1; i <= n; ++i) {
    cin >> x;
    a[x] = 1;
    res++;
    while (a[m] == 1 && m > 0) {
      res--;
      m--;
    }
    printf("%d ", res);
  }
  return 0;
}
