Multiple IF and ELIF conditionals [Python]

name="admin"
passw="aaa"

itemone="01"
itemtwo="02"

a=input("Enter your username:")
b=input("Enter your password:")

if(a==name)and(b==passw):
    print("Welcome.")
    c=int(input("Enter Item Code:"))

if(c==itemone):
    print("Name: ID")
elif(c==itemtwo):
    print("Name: Mirror")
else:
    print("Item not found. Try again.")

else:
    print("Username/Password is incorrect.")
    exit()

when "01" or "02" is entered, the program ignores all the other codes and directs to "item not found. try again."