• 注意：判断的时候，副对角线。。。
lines=[]
while True:
    try:
        lines.append(int(input()))
    except:
        break
# print(lines)
for k in lines:
    for i in range(k):
        for j in range(k):
            if i == j or i + j + 1 == k:
                print("*",end="")
            else:
                print(" " ,end="")
        print()