#include<iostream>
#include<fstream>
using namespace std;
int main()
{
ifstream in("algsort.in");
ofstream out("algsort.out");
    int n,i,v[9999999],j,aux;
    in>>n;
    for(i=1;i<=n;i++)
    {
        in>>v[i];
    }
    for(i=1;i<=n-1;i++)
    {
        for(j=i+1;j<=n;j++)
        {
            if(v[i]>v[j])
            {
                aux=v[i];
                v[i]=v[j];
                v[j]=aux;
            }
        }
    }
    for(i=1;i<=n;i++)
    {
        out<<v[i];
    }

    return 0;
}