#include <fstream>
#include <algorithm>

using namespace std;

int main() {
    ifstream f ("algsort.in");
    ofstream t ("algsort.out");
    static unsigned v[500010];
    int n;

    f >> n;

    for (int i = 0; i < n; ++i) {
        f >> v[i];
    }

    sort(v, v + n);

    for (int i = 0; i < n; ++i) {
        t << v[i];
    }

    return 0;
}