function F = KBfi(x)
%

F(1) = -1+x(1)+x(2)-x(1)*x(2);
F(2) = -1+x(1)+x(3)-x(1)*x(3);
F(3) = -1+x(2)+x(3)-x(2)*x(3);
F(4) = -1+x(1)+x(2)+x(3)-x(1)*x(2)-x(1)*x(3)-x(2)*x(3)+x(1)*x(2)*x(3);
F(5) = -0.5+x(1);
F(6) = -0.5+x(2);
F(7) = -0.5+x(3);
