#include <fstream>
#include <vector>
#include <algorithm>

using namespace std;
ifstream cin("algsort.in");
ofstream cout("algsort.out");
vector<int> V;

int main()
{
    int N,x;
    for(int i = 1; i <= N; ++i){
        cin >> x;
        V.push_back(x);
    }
    sort(V.begin(),V.end());
    for(vector<int>::iterator it = V.begin(); it != V.end(); ++it)
        cout << *it;
    return 0;
}