uses crt;
var a:array[1..1000000] of longint;
n,i,s:longint;
begin
clrscr;
write('Nhap so luong phan tu: '); readln(n);
for i:=1 to n do
begin
write('Nhap phan tu thu ',i,': '); readln(a[i]);
if a[i] mod 2=1 then inc(s,a[i]);
end;
write('Tong cac so le: ',s);
readln;
end.