test_07

def show_palindrome(value):
    result = ""
    limit = value
    limit /= 2
    limit = int(limit)
    for i in range(1, value+1):
        result += str(i)
    for i in range(value-1, 0, -1):
        result += str(i)
    return result

def show_palindromic_triangle(num):
    counter = 1
    for i in range(0,num):
        for i in range(0,num-counter):
            print(" ",end=" ")
        result = show_palindrome(counter)
        for i in result:
            print(i, end=" ")
        for i in range(0,num-counter):
            print(" ",end=" ")
        counter+=1
        print()


value = input()
value = int(value)
show_palindromic_triangle(value)