MAXIMIZE LTSY
SUBJECT TO
AREAA) AREAA = 1000
AREAB) AREAB = 500
AREAC) AREAC = 1000
PHI2 -PHI1> 0
PHI3 -PHI2> 0
PHI4 -PHI3> 0
PHI5 -PHI4> 0
PHI6 -PHI5> 0
PHI7 -PHI6> 0
PHI8 -PHI7> 0
PHI9 -PHI8> 0
PHI10-PHI9> 0
PHI11 -PHI10> 0
PHI12 -PHI11> 0