$2\mathrm{.}10.$ What is the value of $Z$ after execution? $L$ and $M$ are any user$-$provided whole numbers. $M$ is greater than $L.$ ALPHA and $P\_$ INITIAL are any user$-$provided real numbers.

INPUT ALPHA, L$,$ M$,$ P$\_$INITIAL

P=PINITIAL

FOR $(K)=L,M$

$P=(P+$ALPHA$*K)$

END FOR

$Z=P$