monitor test greslime

monitor = peripheral.wrap("top")
print("Please enter your Username and Password")
print("Username:")
username = read()
Print("Password:")
password = read()
if username == "GreSlime" and password == "lala123" then
monitor.write ("Welcome Greslime")
monitor.clear
monitor.write ("Please make your choice.")
sleep(1)
monitor.write ("Press 1 for to load the Operating system.")
sleep(1)
monitor.write ("Press 2 for to load the reactor program.")
sleep(1)
monitor.write ("Press 3 for to check your mail.")
sleep(1)
monitor.write ("Press 4 for to reboot.")
input = read()
monitor.write("Loading")
sleep(2)
monitor.write("Loading.")
sleep(2)
monitor.write("Loading..")
sleep(2)
monitor.write("Loading...")
sleep(2)
monitor.write("Loading....")

if input == "1" then shell.run("monitor", "top", "OS")
if input == "2" then shell.run("monitor", "top", "reactorapp")
if input == "3" then monitor.write("No new mail.")
if input == "4" then "shell.run("reboot")

else
print("Your Username or Password is incorrect.")
sleep(5)
shell.run("test")
end