var n,i,s,p:Longint;
begin
write('n=');
readln(n);
s := 0;
p := 0;
for i := 1 to N do begin
if i mod 2 = 0 then p := p * i
else s := s + i;
end;
writeln('sum of odd =', s);
writeln('proizv of even =', p);
end.