function err = KB34Fs(x)
%

F(1) = -0.99048+(1-x(5))+(1-x(1))-(1-x(5))*(1-x(1));
F(2) = -0.9351+(1-x(5))+(1-x(2))+x(1)-(1-x(5))*(1-x(2))-(1-x(5))*x(1)-(1-x(2))*x(1)+(1-x(5))*(1-x(2))*x(1);
F(3) = -0.79146+(1-x(4))+(1-x(2))-(1-x(4))*(1-x(2));
F(4) = -0.96675+(1-x(4))+(1-x(3))-(1-x(4))*(1-x(3));
F(5) = -0.98707+(1-x(3))+(1-x(1))+x(4)-(1-x(3))*(1-x(1))-(1-x(3))*x(4)-(1-x(1))*x(4)+(1-x(3))*(1-x(1))*x(4);
F(6) = -0.34176+x(3)+x(4)-x(3)*x(4);
err = norm(F);
