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

int main()
{
    fstream f;
    f.open("numbers.txt",ios::in);
    if(!f)
    {
        cout << "Error opening file...\n";
        return 0;
    }
    int x, n=0;
    while(f >> x)
        ++n;
    f.close();

    fstream f1("numbers.txt",ios::in);
    int *mas;
    mas = new int[n];
    int i=0;
    while(f1 >> mas[i++]);

    sort(mas,mas+n);
    f1.close();
    f1.open("numbers.txt",ios::out);
    for(i=0; i<n; ++i)
        f1 << mas[i] << ' ';
    f1.close();
    cout << endl;
    return 0;
}