int main()
{
int sz[100000],a[100],n,i,d;
scanf("%d",&n);
for(i=0;i<100;i++)
{
	a[i]=1;

}
scanf("%d",&sz[0]);
printf("%d",sz[0]);
a[sz[0]]=0;
for(i=1;i<n;i++)
{
	scanf("%d",&sz[i]);
		d=sz[i];
		if(a[d]!=0)
		{
			printf(" %d",sz[i]);
		}

	a[d]=0;
}


return 0;

}