Exceptional sequences of maximal length on some surfaces isogenous to a higher product

Let S=(C×D)/GS=(C×D)/G be a surface isogenous to a higher product of unmixed type with pg=q=0pg=q=0, G=(Z/2)3G=(Z/2)3 or (Z/2)4(Z/2)4. We construct exceptional sequences of line bundles of maximal length and quasiphantom categories on S.