# platno ma byt nxn pole tecek
# platno = [['.']*n]*n
def vytvor_platno(n):
    platno = [ ['.' for j in range(2*n-1)] for i in range(n) ]
    return platno

def ker(n, platno):
    for i in range(n):
        for j in range(n-1-i,n+i):
            platno[i][j] = '*'

def vypis(matice):
    for radek in matice:
        # radek = [1,2,3]
        print("".join(map(str,radek))) # vypise "1 2 3"


# n = int(input())
n=3
platno = vytvor_platno(n)
ker(n, platno)
vypis(platno)