function words(w1, w2: double; day: integer): integer;
var
today: double;
begin
today := (w1 + w2) / 2 + 2;
//
if (50 <= today) then
words := day
else
words := words(w2, today, day + 1);
end;
begin
writeLn('Учитсо дальше нету сил, Незнайко слился на ', words(1.0, 1.0, 3), ' день.');
end.
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