6

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,s[10000],a[1000],b[1000],a1=1,b1=1;
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>s[i];
        if(s[i]>0)
        {
            a[a1]=s[i];
            a1++;
        }
        else
        {
            b[b1]=s[i];
            b1++;
        }
    }
    sort(a+1,a+1+a1);
    sort(b+1,b+1+b1);
    for(int i=1;i<=a1;i++)if(a[i]!=0)cout<<a[i]<<" ";
    for(int j=1;j<=b1;j++)if(b[j]!=0)cout<<b[j]<<" ";
}