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diff --git a/prolog/problems/algol/algol_for_3/sl.py b/prolog/problems/algol/algol_for_3/sl.py
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+++ b/prolog/problems/algol/algol_for_3/sl.py
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+name = 'algol_for/3'
+slug = 'interpreter za mini-algol s for stavkom'
+
+description = '''\
+<p>Razširi podano gramatiko za jezik mini-algol, da bo le-ta podprla uporabo stavka "for". Primer:</p>
+<pre>
+% for a := 0 & a < 5 & a := a + 1 do
+% begin
+%   print(a)
+% end
+?- _Program = [begin,for,a,:=,0,&,a,<,5,&,a,:=,a+1,do,begin,print(a),end,end],
+    algol_for(_F, _Program, []),
+    apply([a=2], Output, _F).
+  Output = [a=5,printout=[0,1,2,3,4]].
+</pre>
+'''
+
+hint = {}