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E=200;
C=4000;
n=400;
F=400;
p=16000;
u=800;
b=[0.3,0.5,0.7,0.8];
(E=200;
C=4000;
n=400;
F=400;
p=16000;
u=800;
b=[0.3,0.5,0.7,0.8];
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