#include <fstream>
#include <vector>
#include <algorithm>
using namespace std;

#define pb push_back

int main()
{
    ifstream in("algsort.in");
    ofstream out("algsort.out");
    long x,n;
    vector<long> v;
    in>>n;
    for(int i=0;i<n;i++)
    {
            in>>x;
            v.pb(x);
    }
    sort(v.begin(),v.end());
    for(vector<long>::iterator it=v.begin();it!=v.end();++it) out<<*it;
    return 0;
}