var n,i,s:longint;
a:array [1..1000] of longint;
begin
writeln('vvedite n');
readln(n);
s:=0;
for i:=1 to n do
begin
read(a[i]);
if odd(a[i]) then s:=s+a[i];
end;
writeln('Summa elementov massiva ravno ',s);
end.