(setup-machine-p1-n0 )
(open-new-stack-n0-n1 )
(start-order-o1-n1-n0 )
(open-new-stack-n0-n1 )
(start-order-o4-n1-n0 )
(make-product-p1-n0 )
(open-new-stack-n0-n1 )
(start-order-o3-n1-n0 )
(setup-machine-p5-n0 )
(make-product-p5-n0 )
(ship-order-o4-n0-n1 )
(start-order-o5-n1-n0 )
(setup-machine-p2-n0 )
(make-product-p2-n0 )
(setup-machine-p4-n0 )
(ship-order-o1-n0-n1 )
(start-order-o2-n1-n0 )
(make-product-p4-n0 )
(setup-machine-p3-n0 )
(make-product-p3-n0 )
(ship-order-o3-n0-n1 )
(ship-order-o2-n1-n2 )
(ship-order-o5-n2-n3 )
; cost = 23 (unit cost)
