N = int(input("input:"))
print('*' * N + '*' * (N - 1)
for A in range(N):
        for a in range(N + (N - 1)):
        if (A == a) or(A + a == N + (N - 2)):
            print("*", end = "")
        else :print(end = " ")
        print()
        for i in range(N - 1):
        print(' ' * (N - (i + 2)) + '*' + ' ' + ' ' * (N - (N - i)) + ' ' * i + '*') print('*' * N + '*' * (N - 1))