parse var in a cycle (like j -> Cj)

[salvomic]

hi all,
I little help to make in a program something like: to parse columns os Statistics adding a var in a cycle.
i.e. I must get C1, C2, C3 and I think to do:
FOR j FROM 0 TO 9 DO
// use Cj (C0, C1, C2...), but I cannot use Cj as it would be another var... and not C(j)...
n:= size(Cj); // doesn't work...
END;

thank you!