function err = KBis(x)
%

F(1) = -0.8+(1-x(7))+x(1)-(1-x(7))*x(1);
F(2) = -0.5+(1-x(7))+x(6)-(1-x(7))*x(6);
F(3) = -0.8+(1-x(7))+(1-x(2))-(1-x(7))*(1-x(2));
F(4) = -0.7+(1-x(8))+x(3)-(1-x(8))*x(3);
F(5) = -0.95+(1-x(8))+(1-x(1))-(1-x(8))*(1-x(1));
F(6) = -0.8+(1-x(8))+(1-x(4))-(1-x(8))*(1-x(4));
F(7) = -0.8+(1-x(8))+(1-x(5))-(1-x(8))*(1-x(5));
F(8) = -0.9+(1-x(9))+(1-x(1))-(1-x(9))*(1-x(1));
F(9) = -0.8+(1-x(9))+(1-x(3))-(1-x(9))*(1-x(3));
F(10) = -0.9+(1-x(9))+x(4)-(1-x(9))*x(4);
F(11) = -0.9+(1-x(9))+x(5)-(1-x(9))*x(5);
F(12) = -0.9+(1-x(10))+x(1)-(1-x(10))*x(1);
F(13) = -0.8+(1-x(10))+(1-x(6))-(1-x(10))*(1-x(6));
F(14) = -0.8+(1-x(10))+(1-x(2))-(1-x(10))*(1-x(2));
F(15) = -0.9+(1-x(11))+x(5)-(1-x(11))*x(5);
F(16) = -0.9+(1-x(11))+x(4)-(1-x(11))*x(4);
F(17) = -0.8+(1-x(11))+x(3)-(1-x(11))*x(3);
F(18) = -0.9+(1-x(11))+(1-x(1))-(1-x(11))*(1-x(1));
F(19) = -0.9+(1-x(11))+(1-x(6))-(1-x(11))*(1-x(6));
F(20) = -0.8+(1-x(2))+x(3)-(1-x(2))*x(3);
F(21) = -0.8+(1-x(2))+(1-x(4))-(1-x(2))*(1-x(4));
F(22) = -0.8+(1-x(2))+(1-x(5))-(1-x(2))*(1-x(5));
F(23) = -0.8+(1-x(12))+(1-x(1))-(1-x(12))*(1-x(1));
F(24) = -0.8+(1-x(12))+x(2)-(1-x(12))*x(2);
F(25) = -0.8+(1-x(13))+x(1)-(1-x(13))*x(1);
F(26) = -0.8+(1-x(13))+(1-x(2))-(1-x(13))*(1-x(2));
F(27) = -0.9+(1-x(14))+x(2)-(1-x(14))*x(2);
F(28) = -0.9+(1-x(14))+(1-x(1))-(1-x(14))*(1-x(1));
F(29) = -0.9+(1-x(14))+(1-x(6))-(1-x(14))*(1-x(6));
F(30) = -0.9+(1-x(15))+x(2)-(1-x(15))*x(2);
F(31) = -0.8+(1-x(15))+(1-x(1))-(1-x(15))*(1-x(1));
F(32) = -0.95+(1-x(16))+x(2)-(1-x(16))*x(2);
F(33) = -0.9+(1-x(16))+(1-x(1))-(1-x(16))*(1-x(1));
F(34) = -0.8+(1-x(17))+x(1)-(1-x(17))*x(1);
F(35) = -0.8+(1-x(17))+x(6)-(1-x(17))*x(6);
F(36) = -0.8+(1-x(17))+(1-x(2))-(1-x(17))*(1-x(2));
F(37) = -0.9+(1-x(18))+(1-x(1))-(1-x(18))*(1-x(1));
F(38) = -0.9+(1-x(18))+x(3)-(1-x(18))*x(3);
F(39) = -0.8+(1-x(18))+x(4)-(1-x(18))*x(4);
F(40) = -0.7+(1-x(18))+x(5)-(1-x(18))*x(5);
F(41) = -0.9+(1-x(1))+(1-x(2))-(1-x(1))*(1-x(2));
F(42) = -0.9+x(18);
F(43) = -1+x(8);
err = norm(F);
