function y = myobj(x)
A = reshape(x(1:4),[2 2]);
C = x(5:6);
y = 0;
for i=2
  for j=1:2
    y = y + C(i) * (A(j,1)*F([1 j]) - A(j,i)*F([i j]));
  end
end
return

function r = F(x)
r = length(find(x~=1));
return