Question 112
The midpoints of the sides $BC$, $CA$, and $AB$ of triangle $ABC$ are $D$, $E$, and $F$, respectively. The reflections of centroid $M$ of $ABC$ around points $D$, $E$, and $F$ are $X$, $Y$, and $Z$, respectively. Segments $XZ$ and $YZ$ intersect the side $AB$ in points $K$ and $L$, respectively. Prove that $AL = BK$.