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#include<cstdio>
#include<algorithm>
using namespace std;
int a[500005],n;
int pozitie(int p, int u)
{
int sp=0,su=1;
while(p<u)
if(a[p]<=a[u])
p=p+sp,u=u-su;
else {
swap(a[p],a[u]);
sp=1-sp;su=1-su;
}
return p;
}
void quick(int p, int u)
{
if(p<u){
int poz=pozitie(p,u);
quick(p,poz-1);
quick(poz+1,u);
}
}
int main()
{
freopen("algsort.in","r",stdin);
freopen("algsort.out","w",stdout);
scanf("%d",&n);
for(int i=1;i<=n;i++)scanf("%d",&a[i]);
quick(1,n);
for(int i=1;i<=n;i++) printf("%d ", a[i]);
return 0;
}