n = int(input())
if n%2==0:
    for i in range(1,n//2+1):
        if i==1:
            print('*'*n)
        else:
            print('*' + ' '*(i-2) + '*' + ' '*(n-4-2*(i-2)) + '*' + ' '*(i-2) + '*')
    for i in range(n//2+1,n+1):
        if i==n:
            print('*'*n)
        else:
            print('*' + ' '*(n-1-i) + '*' + ' '*(i-n//2-1)*2 + '*' + ' '*(n-1-i) + '*')
else:
    for i in range(1,n//2+1):
        if i==1:
            print('*'*n)
        else:
            print('*' + ' '*(i-2) + '*' + ' '*(n-4-2*(i-2)) + '*' + ' '*(i-2) + '*')
    print('*' + ' '*((n-3)//2) + '*' + ' '*((n-3)//2) + '*')
    t = 1
    for i in range(n//2+2,n+1):
        if i==n:
            print('*'*n)
        else:
            print('*' + ' '*(n-1-i) + '*' + ' '*t + '*' + ' '*(n-1-i) + '*')
            t += 2