!set exolist  =!char 1 to -2 of proba,stable,retard,matrice,villes,bit,
!set titlelist=!char 1 to -2 of Etat d'un systme,Etat stable,Les jours de retard,Matrice de transition,Mouvement de populations,Transmission d'un message binaire,
!set exototal =!itemcnt $exolist

