bonzrank

n=int(raw_input())
for i in range(n):
    kolom=n-i-1
    for j in range(kolom):
        print " ",
    for j in range(2*i+1):
        print "*",
    for k in range(n-1):
        print " ",
        for j in range(2*kolom):
            print " ",
        for j in range(2*i+1):
            print "*",
    print

n=int(input())
for i in range(n):
    kolom=n-i-1
    for j in range(kolom):
        print(" ",end="")
    for j in range(2*i+1):
        print("*",end="")
    for k in range(n-1):
        print(" ",end="")
        for j in range(2*kolom):
            print(" ",end="")
        for j in range(2*i+1):
            print("*",end="")
    print()