set D_CITY := NE SE ;
set W_CITY := BOS EWR BWI ATL MCO ;

set DW_LINKS := (NE,BOS) (NE,EWR) (NE,BWI)
                (SE,EWR) (SE,BWI) (SE,ATL) (SE,MCO);

param p_supply := 450 ;

param w_demand :=
  BOS  90,  EWR 120,  BWI 120,  ATL  70,  MCO  50;

param:  pd_cost  pd_cap :=
  NE       2.5    250
  SE       3.5    250 ;

param:    dw_cost  dw_cap :=
  NE BOS     1.7    100
  NE EWR     0.7    100
  NE BWI     1.3    100

  SE EWR     1.3    100
  SE BWI     0.8    100
  SE ATL     0.2    100
  SE MCO     2.1    100 ;