SETS:
 
ogg/1..2/:p, x;
ris/macch1 macch2 man/:b;
mat(ris,ogg):a;
 
ENDSETS
 
DATA:
 
p= 120  180;
b= 960   960  1920 ;
a= 15  55  35  45   60  100;
 
ENDDATA
 
MAX= @SUM(ogg(j): p(j)*x(j) );
 
@FOR(ris(i): [ris] @SUM(ogg(j): a(i,j) * x(j) ) < b(i) );