Im stuck :/

So basically i have :

                     I  4  1 -2  I 

A + B =         I  0  1   3  I

                     I  3 -1  1  I

                     I  2  1  0  I 

A - B =         I  4  -1  1  I

                     I  -3 3  1  I

And have to find the A and B matrices, sadly im out of ideas how to do it.

I know it's probably an easy solution but i cant think of it, help please