/* -*- coding: utf-8 -*-
 *
 * 2092.cc:  No.2092 Conjugation - yukicoder
 */

#include<cstdio>
#include<algorithm>
 
using namespace std;

/* constant */

const int MAX_N = 100000;

/* typedef */

/* global variables */

int as[MAX_N];

/* subroutines */

/* main */

int main() {
  int n;
  scanf("%d", &n);
  for (int i = 0; i < n; i++) scanf("%d", as + i), as[i]--;

  for (int i = 0, j = n - 1; i <= as[0]; i++) {
    while (j >= 0 && as[j] < i) j--;
    printf("%d%c", j + 1, (i < as[0]) ? ' ' : '\n');
  }

  return 0;
}