def main():
    for i in range(3):
        for j in range(5):
            print("* ", end="")
        print("")


main()

* * * * * 
* * * * * 
* * * * *

def main():
    for i in range(5):
        for j in range(i + 1):
            print("* ", end="")
        print("")


main()

* 
* * 
* * * 
* * * * 
* * * * * 

def main():
    for i in range(5):
        for j in range(4 - i):
            print("  ", end="")
        for j in range(i + 1):
            print("* ", end="")
        print("")


main()

        * 
      * * 
    * * * 
  * * * * 
* * * * * 

def main():
    sum = 0
    count = 0
    for i in range(10):
        for j in range(i + 1):
            sum = sum + (i * j)
            count += 1
    print("sum: {}, count: {}".format(sum, count))

def main():
    for i in range(5):
        for j in range(i + 1):
            print("* ", end="")
        print("")