题解 | #X形图案#

while True:
    try:
        n=int(input())
        for i in range(1,n+1):
            for j in range(1,n+1):
                if i==j or (i+j==n+1):
                    print("*",end="")
                else:
                    print(" ",end="")
            print()
    except:
        break