#include<bits/stdc++.h>
#define IOS ios::sync_with_stdio(false),cin.tie(0),cout.tie(0)
#define int long long
using namespace std;
int n,a[1000005],cnt,ans;
signed main(){
	IOS;
	cin>>n;
	for(int i=1;i<=n;i++){
		ans++;
		cin>>a[i];
		if(a[i]!=a[i-1]){
			cnt=a[i]-1;
		}
		else if(a[i]==a[i-1]){
			cnt--;
			if(cnt==0){
				ans-=a[i];
				cnt=a[i-a[i]]-1;
				a[i]=a[i-a[i]];
			}
		}
		cout<<ans<<"\n";
	}
	return 0;
}