program test(input, output);
var
i, N, s: Integer;
begin
writeln('Введіть число ');
readln(N);
s := 0;
for i := 0 to N do
begin
if i mod 2 = 0 then
begin
s := s + i;
writeln('ПОТOЧНЕ ЧИСЛО ', i, ' s=', s:5);
end;
end;
writeln('РЕЗУЛЬТАТ ', s);
end.
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