diamond shape

rows = int(input("Enter the number of rows: "))  
  
# It is used to print the space  
k = 2 * rows - 2  
# Outer loop to print number of rows  
for i in range(0, rows):  
    # Inner loop is used to print number of space  
    for j in range(0, k):  
        print(end=" ")  
    # Decrement in k after each iteration  
    k = k - 1  
    # This inner loop is used to print stars  
    for j in range(0, i + 1):  
        print("* ", end="")  
    print("")  
  
# Downward triangle Pyramid  
# It is used to print the space  
k = rows - 2  
# Output for downward triangle pyramid  
for i in range(rows, -1, -1):  
    # inner loop will print the spaces  
    for j in range(k, 0, -1):  
        print(end=" ")  
    # Increment in k after each iteration  
    k = k + 1  
    # This inner loop will print number of stars  
    for j in range(0, i + 1):  
        print("* ", end="")  
    print("")