I can't figure out how to make a do-loop in Fortran to do the following:

I have 2 variables. Let's say:

and I need 10 fields printed out.

The first field will have the value:

level + step
<then the value of the one above + step>
<then the value of the one above + step>
<then the value of the one above + step>
<then the value of the one above + step>
<then the value of the one above + step>
<then the value of the one above + step>
<then the value of the one above + step>
<then the value of the one above + step>
<then the value of the one above + step>

So I'm sure it's simple but I can't figure out how to use the values of variables in do-loops instead of typing the numbers in.