#include <iostream> using namespace std; int main() { int a,x,j; cin>>a; int arr[666]; for (int i = 0; i < a; i++) { cin >> x; arr[i]=x; } for (int i = 0; i <a; i++) { j=i-1; while(j>=0){ if(arr[i]==arr[j]){ break; } j=j-1; } cout<<arr[i]<<" "; } return 0; }