n=int(input())
A=list(map(int,input().split()))
#print(n,A)
for i in range(2*n-3):
    for p in range(n):
        for q in range(n):
            if p>=q:continue
            if p+q!=i:continue
            if A[p]>A[q]:A[p],A[q]=A[q],A[p]
print(*A)