min=3.585*X1+3.666*X2+3.705*X3+3.737*X4+3.796*X5;
400>=400*X1-100*1;
400*X1-100*1>=100;
400>=400*(X1+X2)-100*2;
400*(X1+X2)-100*2>=100;
400>=400*(X1+X2+x3)-100*3;
400*(X1+X2+x3)-100*3>=100;
400>=400*(X1+X2+X3+X4)-100*4;
400*(X1+X2+X3+X4)-100*4>=100;
400>=400*(X1+X2+X3+X4+X5)-100*5;
400*(X1+X2+X3+X4+X5)-100*5>=100;
x1=0.5*y1;
x2=0.5*y2;
x3=0.5*y3;
x4=0.5*y4;
x5=0.5*y5;
@gin(y1);@gin(y2);@gin(y3);@gin(y4);@gin(y5);
y1