学步园

# include<cstdio>
# include<iostream>
# include<algorithm>

using namespace std;

# define MAX 100
int a[MAX];

int main(void)
{
    int n;
    while ( cin>>n )
    {
        for ( int i = 0;i < n;i++ )
        {
            cin>>a[i];
        }
        sort(a,a+n);
        for ( int i = 0;i < n;i++ )
            {
                if ( a[i]!=a[i+1] )
                    cout<<a[i]<<" ";

            }
           cout<<endl;
    }


    return 0;
}