a=5
b=4
c=sum((a,b))
print(c)
 
def function1(a,b):
    print("sum of a and b is",a+b)
function1(5,7)

def function2(a,b):
    average=(a+b)/2
    print("avg",average)
    return average
function2(3,7)

v=function2(5,7) 
print("RETURN FILE")
print(v)   


    