n = int(input())

x = n // 2 + 1
y = 1
fasele = n // 2

while x > 0:
    z = 0
    zz = 0
    while fasele > zz:
        print(" ", end="")
        zz += 1
    while y > z :
        print("*", end="")
        z += 1
    print()
    x -= 1
    y += 2
    fasele -= 1

xx = n // 2
fasele2 = 1
tedad = n - 2
while xx > 0:
    mm = 0
    mmm = 0
    while fasele2 > mm:
        print(" ", end="")
        mm += 1
    while tedad > mmm:
        print("*", end="")
        mmm += 1

    print()
    fasele2 += 1
    tedad -= 2
    xx -= 1