Problem #WSP-5277

Problem

Between two mirrors $AB$ and $AC$, forming a sharp angle two points $D$ and $E$ are located. In what direction should one shine a ray of light from the point $D$ in such a way that it would reflect off both mirrors and hit the point $E$?
If a ray of light comes towards a surface under a certain angle, it is reflected with the same angle as on the picture.