#include<cstdio>
using namespace std;
int main()
{
	int n,a[100],i,aux,j;
	freopen("algsort.in","r",stdin);
	freopen("algsort.out","w",stdout);
	scanf("%d",&n);
	for(i=0;i<=n;i++)
	scanf("%d",&a[i]);
	for(i=0;i<=n-1;i++)
		for(j=i+1;j<n;j++)
			if(a[j]<a[i])
			{aux=a[i];
			a[i]=a[j];
			a[j]=aux;
			}
			for(i=0;i<n;i++)
		printf("%d",a[i]);
			return 0;
}