/*
*????111019 02.cpp
*??????
*?????2011-10-19
*????????????
*/

int main( )
{
	int i,n;      //????
	cin>>n;     //??????
	int a[n];     //????
	for(i=0;i<n;i++)     //????
		cin>>a[i];
	for(i=0;i<n-1;i++)     //?????????????????
	{
		for(int j=i+1;j<n;j++)
		{	if(a[j]==a[i])     
			{
			for(int k=j;k<n;k++)
			    {a[k]=a[k+1];}     //?????????????????????
				n=n-1;
				j=j-1;
			}
			else continue;     //??????
		}
	}
	for(i=0;i<n-1;i++)
		cout<<a[i]<<" ";
	    cout<<a[n-1]<<endl;     //????
	return 0;
}