A typical FOLLOW statement may look like this:
FOLLOW (R(1,),K(1))
Here, the numbers in subscripts are reference numbers, as in an INTERLEAVE statement, rather than indices indicating a particular array element.
This statement acts like an EQUIVALENCE statement, except that the individual items in each array being joined are made to begin at the same spot in memory; thus, in the example, K(1) is made to start at the same place as R(1,1), K(2) is made to start at the same place as R(2,1), and so on.
The storage of the first element in the parentheses is not changed, those subsequent are shifted. Only the first element in any set of parentheses may also appear in an INTERLEAVE statement.