#!/usr/bin/python
import os, sys
import traceback

if not os.path.exists('/srv/vmlist'):
	print "5900"
	sys.exit(0)

try:
	f = open('/srv/vmlist', 'r')
	vnclist = []
	for l in f:
		l = l.strip()
		if not l:
			continue
		vm, mac, vnc, autostart = l.split()
		vnc = int(vnc)
		vnclist.append(vnc)
	vnclist.sort()
	vncstart = 5900
	for i in xrange(len(vnclist)):
		if vncstart + i != vnclist[i]:
			print vncstart + i

	print vncstart + len(vnclist)
except:
	traceback.print_exc()
	sys.exit(1)