/*
 * my project5.cpp
 *
 *  Created on: 2010-11-5
 *      Author: Administrator
 */
int main()
{
	int n,i,j,k,t=0;
	cin>>n;
	//cout<<endl;
	int a[n];
	for(i=0;i<n;i++){
	cin>>a[i];
	}
	/*
    for(i=0;i<n-t;i++){
    	for(j=i+1;j<n-t;j++){
    		if(a[j]==a[i]){
              t++;
              for(k=j;k<n-1;k++){
    		 a[k]=a[k+1];
            }
              j--;

            }

            }

            }

    i=n-t;

    for(i=0;i<n-t-1;i++)
    	cout<<a[i]<<" ";
   cout<<a[n-t-1]<<endl;*/

	for (i=0; i<n; i++ )
		if (a[i]>=0)
			for (j=i+1; j<n; j++ )
				if (a[i]==a[j]) a[j]=-1;
	for (i=0; i<n; i++ )
		if (a[i]>=0)
		{
			if (i>0) cout<<' ';
			cout<<a[i];
		}
	cout<<endl;
	return 0;
}
