function F = KB26F(x)
%

F(1) = -0.96819+(1-x(1))+x(2)+x(3)+x(4)-(1-x(1))*x(2)-(1-x(1))*x(3)-(1-x(1))*x(4)-x(2)*x(3)-x(2)*x(4)-x(3)*x(4)+(1-x(1))*x(2)*x(3)+(1-x(1))*x(2)*x(4)+(1-x(1))*x(3)*x(4)+x(2)*x(3)*x(4)-(1-x(1))*x(2)*x(3)*x(4);
F(2) = -0.96821+(1-x(5))+(1-x(4))+(1-x(3))+x(1)-(1-x(5))*(1-x(4))-(1-x(5))*(1-x(3))-(1-x(5))*x(1)-(1-x(4))*(1-x(3))-(1-x(4))*x(1)-(1-x(3))*x(1)+(1-x(5))*(1-x(4))*(1-x(3))+(1-x(5))*(1-x(4))*x(1)+(1-x(5))*(1-x(3))*x(1)+(1-x(4))*(1-x(3))*x(1)-(1-x(5))*(1-x(4))*(1-x(3))*x(1);
F(3) = -0.61696+(1-x(1));
F(4) = -0.9962+(1-x(3))+(1-x(2))+x(1)+x(4)+x(5)-(1-x(3))*(1-x(2))-(1-x(3))*x(1)-(1-x(3))*x(4)-(1-x(3))*x(5)-(1-x(2))*x(1)-(1-x(2))*x(4)-(1-x(2))*x(5)-x(1)*x(4)-x(1)*x(5)-x(4)*x(5)+(1-x(3))*(1-x(2))*x(1)+(1-x(3))*(1-x(2))*x(4)+(1-x(3))*(1-x(2))*x(5)+(1-x(3))*x(1)*x(4)+(1-x(3))*x(1)*x(5)+(1-x(3))*x(4)*x(5)+(1-x(2))*x(1)*x(4)+(1-x(2))*x(1)*x(5)+(1-x(2))*x(4)*x(5)+x(1)*x(4)*x(5)-(1-x(3))*(1-x(2))*x(1)*x(4)-(1-x(3))*(1-x(2))*x(1)*x(5)-(1-x(3))*(1-x(2))*x(4)*x(5)-(1-x(3))*x(1)*x(4)*x(5)-(1-x(2))*x(1)*x(4)*x(5)+(1-x(3))*(1-x(2))*x(1)*x(4)*x(5);
F(5) = -0.88494+x(3)+x(5)-x(3)*x(5);
