init
	users: array of string = {"Fred","John","Steve","Ann","Mary"}
	passwords: array of string = {"access","dog","12345","kids","qwerty"}

	print "Enter user name"
	usrname:string = stdin.read_line()
	print "Enter password"
	pwd:string = stdin.read_line()  

	error:int = 0                   
	cont:int = 0        
	for var user in users
		if (user!=usrname)
			error++
			if error == (users.length)      
				print "No reconocido. Acceso denegado."             
		if (user==usrname)
			position:int = cont                 
			if pwd == passwords[position]               
				print "OK: Acceso Concedido."
			else                
				print "Password incorrecta."            
		cont++