os.pullEvent = os.pullEventRaw

term.clear()
term.setCursorPos(1, 1)

username = {"user1", "user2", "user3"}
password = {"pass1", "pass2", "pass3"}

write("Jmeno: ")
user = read()

write("Heslo: ")
pass = read('*')

for i=1, #username do
 if user == username[i] and pass == password[i] then
   access = true
 end
end

if access == true then
print("Prihlasovani")
sleep(1)
print("Welcome "..user)
else
print("spatny jmeno nebo heslo")
sleep(2)
os.reboot()
end