function  max=ACSO_Le(A1,B1,A2,B2)

sum1=A1+B1;
sum2=A2+B2;

delta=sum1-sum2;

correctfactor=log(1+exp(-(abs(delta))));

if(delta>=0)
   max=sum1+correctfactor;
else 
   max=sum2+correctfactor;
end