param budget := 750000;	

param n := 6; 

param rendimento :=
1 8.65
2 9.50
3 10.00
4 8.75
5 9.25
6 9.00;

param scadenza :=
1 11
2 10
3 6
4 10
5 7
6 13;

param rating :=
1 1
2 3
3 4
4 1
5 3
6 2;

param MaxPercSingola := 25;	

param PercLungoTerm := 50;	

param PercBassoRating := 35;