I have two one-dimensional arrays, R and C. R is the row numbers and C is the column numbers. I need to get a subarray from an array A such that the new array does NOT contain certain rows and columns in A based on R and C.

To illustrate:

```
A = randn(5, 5)
R = [2, 3]
C = [4, 5]
```

I want to get an array by eliminating the 4th and 5th columns in A and also the 2nd and 3rd rows in A. What is a good way to do that?

Thanks!