#include<bits/stdc++.h>
using namespace std;
int main(){
	set<int>s;
	// write your code here......
	for (int i = 0; i < 5; ++i) {
		int num;
		cin >> num;
		s.insert(num);
	}

	for (auto it = s.begin(); it != s.end(); ++it) {
		cout << *it << " ";
	}
	cout << endl;
	return 0;
}