set process /1*3/;
set raw /r1*r2,f/;
set out /c1*c2/;

table require(process,raw)
   r1  r2   f
1   9   5  50
2   6   8  75
3   4  11 100
;

table output(process,out)
   c1  c2
1   9   6
2   7  10
3  10   6
;

parameter avail(raw) /
r1 200
r2 400
f 1850
/;

parameter factor(out) /
c1 5
c2 2
/;