#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int main() {
int N, num;
cin >> N;
vector<int> v(N);
for (int i = 0; i < N; ++i) {
cin >> num;
v[i] = num;
}
sort(v.begin(), v.end());
v.erase(unique(v.begin(), v.end()), v.end());
for (auto it : v)
cout << it << ' ';
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8dmVjdG9yPgojaW5jbHVkZSA8YWxnb3JpdGhtPgp1c2luZyBuYW1lc3BhY2Ugc3RkOwoKaW50IG1haW4oKSB7CglpbnQgTiwgbnVtOwoJY2luID4+IE47Cgl2ZWN0b3I8aW50PiB2KE4pOwoKCWZvciAoaW50IGkgPSAwOyBpIDwgTjsgKytpKSB7CgkJY2luID4+IG51bTsKCQl2W2ldID0gbnVtOwoJfQoJc29ydCh2LmJlZ2luKCksIHYuZW5kKCkpOwoJdi5lcmFzZSh1bmlxdWUodi5iZWdpbigpLCB2LmVuZCgpKSwgdi5lbmQoKSk7CgoJZm9yIChhdXRvIGl0IDogdikKCQljb3V0IDw8IGl0IDw8ICcgJzsKfQ==