computercraft advanced password lock

choice=0
z=0

function timer(fa)
 for f = 1, fa do
  term.clear()
  term.setCursorPos(4,8)
  print("You have been locked out for "..tostring(fa-f).." seconds.")
  sleep(1)
 end
end

repeat
term.clear()
term.setCursorPos(1,1)
print("|----------------------------|")
print("|    (Enter the password)    |")
print("|----------------------------|")
print("|                            |")
print("|----------------------------|")
print("[Q][W][E][R][T][Y][U][I][O][P]")
print(" [a][s][d][f][g][h][j][k][l]")
print("    [z][x][c][v][b][n][m]")
term.setCursorPos(2,4)

  i=read("*")
 if i ~= "pass" then
  print("WRONG!")
  sleep(.4)
  choice=choice+1
 end
 if choice == 4 and z == 0 then
    term.clear()
  term.setCursorPos(1,1)
  print("Did you forget your password?")
    local n=1
while true do
  local x, y=term.getCursorPos()
  term.clearLine()
 if n==1 then write(">YES<   NO") else write(" YES   >NO<") end
  term.setCursorPos(x, y)
a, b=os.pullEvent()
 while a~="key" do a, b=os.pullEvent() end
  if b==203 and n==2 then n=1 end
  if b==205 and n==1 then n=2 end
  if b==28 then print("") break end
 end
  if n==1 then
   print("password hint: the usual")
   sleep(4)
   z=z+1
  elseif n==2 then
   print("try again, but dont mess up otherwise your gonna get locked out")
   sleep(4)
   z=z+1
 end

 elseif choice == 5 then
  timer(101)
 elseif choice > 5 then
  timer(151)
 end
until i == "pass"
-- put whatever you want it to do if the password is correct right here
os.reboot()