#include<iostream>
#include<fstream>
#define MAXN 1000001
using namespace std;
ifstream f("bitsort.in");
int n;
char s[MAXN/8+1];
void citire()
{
    f>>n;
    for(int i=1;i<=n;i++)
    {
        int a; f>>a;
        s[a>>3] |= (1<<(a&7));
    }
}
void afis()
{
    for(int i=0;i<MAXN;i++)
        if(s[i>>3] & (1<<(i&7)))
            cout<<i<<" ";
}
int main()
{
    citire();
    afis();
    return 0;
}