include [HTML_REMOVED]

using namespace std;
const int N = 1000010;

int n;
int q[N],tmp[N];

void merge_sort(int q[],int l,int r){
if(l >= r) return;

int mid = l+r >> 1 ;//(相当于将l+r除2)

merge_sort(q,l,mid),merge_sort(q,mid+1,r);

int k = 0,i = l-1,j = mid + 1;
while(i<=mid && j <= r){
    if(q[i] <= q[j]) tmp[k++] = q[i++];
    else tmp[k++] = q[j++];
}
while(i <= mid) tmp[k++] = q[i++];
while(j <= r) tmp[k++] = q[j++];

for(i = l,j=0;i<=r;i++,j++){
    q[i] = tmp[j];
}

}

int main ()
{
scanf(“%d”,&n);
for(int i =0;i<n;i++){
scanf(“%d”,&q[i]);
}
merge_sort(q,0,n-1);

for(int i=0;i<n;i++){
    printf("%d",q[i]);
}

}