num = int(input("Enter the Number: "))
for i in range(0, num):
for j in range(0, i+1):
print("*", end="")
print()
for i in range(1, num):
for j in range(0, num-i):
print("*", end="")
print()OUTPUT:–
Enter the Number: 20 * ** *** **** ***** ****** ******* ******** ********* ********** *********** ************ ************* ************** *************** **************** ***************** ****************** ******************* ******************** ******************* ****************** *****************