function.py

print("first name",end=" ")
print("middle name",end=" ")
print("last name ",end=" ")

#class 2
a=90
b=89
print("a= ",a)
print("b= ",b)
#write a program to add,sub,mul,div.
print("a+b= ",a+b)
print("a-b= ",a-b)
print("a*b= ",a*b)
print("a%b= ",a%b)

#wap to swap two number without using third variable
a=10
b=30 
print("before swapping")
print("a= ",a)
print("b= ",b)
a=a+b
b=a-b
a=a-b
print("after swapping")
print("a= ",a)
print("b= ",b)

#
a=input("enter username= ")
b=input("enter password= ")
if a == "admin" and b == "admin":
    print("valid user")
else:
    print("invalid user")
    
#

#w
a=int(input("enter the no.= "))
b=int(input("enter the no.= "))
add=a+b
print("addition= ",add)