print('Hello World')

def function1(p1, p2):

    value = (p1*p2)/2

    return (value)
number1 = 0

number2 = 0.1

string = 'text'

if number1 == 0:
    print('batata')
else:
    print('khara')

while number1 <100:
    number1 = number1 +1
    print('number is', number1)
for c in range (0, number1):
    number1=number1-1
    print('number is', number1)
    number3 = function1(5,10)
    print('number is', number3)