Z 440 The Most Expensive Diamond

def Diamond(rows): 
    n = 0
    for i in range(1, rows + 1): 
        for j in range (1, (rows - i) + 1): 
            print(end = " ") 
        while n != (2 * i - 1): 
            print("*", end = "") 
            n = n + 1
        n = 0
        print()  
  
    k = 1
    n = 1
    for i in range(1, rows): 
        for j in range (1, k + 1): 
            print(end = " ") 
        k = k + 1
        while n <= (2 * (rows - i) - 1): 
            print("*", end = "") 
            n = n + 1
        n = 1
        print() 
rows = int(input())
Diamond(rows)