entier $t0,
entier $t1,
entier $123,
entier $,
entier $$,
entier $$$,
entier $f,
entier $_;

f(entier $$)
entier $$$,
entier $f,
entier $_;
{
  $ = $123 + $_ + $$;
  ecrire($);  
}

main() {
  $t0 = 1;
  $123 = $t0 + 0;
  f($123);
}