The Lottery

Nihal goes to lottery shop and buys a ticket which has two sides . Three numbers $N$ , $p$ , and $q$ are printed on the front side of the ticket while there are four numbers $a$ , $b$ , $c$ , and $d$ on the back side. As Nihal is a great observer he finds a pattern to predict if he is getting a lucky ticket or not. Every ticket has its value $X$ and if $X$ is even then then the ticket is $LU