include <bits/stdc++.h>

using namespace std; int n; set a;

int main() {

cin >> n;
int b;
for (int i = 0; i < n; i++) {
	cin >> b;
	a.insert(b);
}
for (int i = 1; i <= 100; i++) {
	if (a.count(i)) {
		cout << i << " ";
	}
}

return 0;

}