hrt

num=input("Please Enter Number : ")
x=num/2
v=0
m=num
n=0
g=num*2
for i in range(0,num/2):
    for j in range(0,x):
        print " ",
    x=x-1
    print "*",
    for k in range(0,v):
        print " ",
    v=v+2
    print "*",
    for l in range(0,m-1):
        print" ",
    m=m-2
    print"*",
    for r in range(0,n):
        print" ",
    n=n+2
    print"*"
for i in range(0,num):
    for s in range(0,i):
        print" ",
    print"*",
    for j in range(0,g-1):
        print" ",
    g=g-2
    print"*"
    if i==(num-1):
        for l in range(0,num+1):
            print" ",
            print"*",