#include<iostream>
#include<cstdio>
using namespace std;
int a[32777]={0};
int main()
{
	int n,x,first=1;
	cin>>n;
	for(int i=1;i<=n;i++) {cin>>x;a[x]++;}
	for(int i=0;i<=32767;i++)
	if(a[i]>=1) a[i]=1;
	for(int i=0;i<=32767;i++)
		if(a[i]==1)
		{
			if(first) first=0;else cout<<" ";
			cout<<i;
		}
    return 0;
}
/**************************************************************
	Problem: 2098
	User: admin
	Language: C++
	Result: Accepted
	Time:26 ms
	Memory:2200 kb
****************************************************************/