#EX1:
 def function_name():
 return "Hello Python From Inside Function"
print(function_name())

#EX2:
a, b, c = "batool", "tala", "rahaf"
def say_hello(n):
  print(f"Hello {n}")
say_hello(a)
say_hello(b)
say_hello(c)

#EX3:
def addition(n1, n2, n3 ,n4):
  print(n1 + n2 +n3+n4)
addition(100, 300, 100, 92.5)

#EX4:
def addition(n1, n2):
  print(n1-n2 )
addition(2021, 2000)