What digits do the letters H,E and A represent?

In the additive problem at the right, each letter stands for a digit and different letters stand for different digits. What digits do the letters H,E and A represent?

In the problem, A represents a single digit i.e; A < 9.
=> 4H<10 =>H<3
i.e; H should be 1 or 2.

In units column, 4E should have H in units place in the result. i.e; 1 or 2
As 4E is always an even number, H cannot be 1. => H = 2

If H = 2, E can be 3 or 8 for 4E to end in 2.
If E = 8, the result will be a three-digit number => E = 3

So if H = 2 and E = 3
A = 9

The letters H = 2, E = 3, A = 9.