are &nbsp; towns in Byteotia, connected by &nbsp; two way roads, each road linking two different towns. The roads may lead through picturesque overflies and somewhat less picturesque tunnels. There is no guarantee that every town can be reached from every other town.</div>
<div>The councilor observed that the current road network does not allow for a long journey. Namely, wherever one starts the journey, it is impossible to visit more than 10 towns without passing through some town twice.</div>
<div>Due t