program TongSoChanTrongDay;
var
n, i, tong: integer;
a: array[1..100] of integer;
begin
tong := 0;
write('Nhap so phan tu cua day: ');
readln(n);
for i := 1 to n do
begin
write('Nhap phan tu thu ', i, ': ');
readln(a[i]);
if a[i] mod 2 = 0 then
tong := tong + a[i];
end;
writeln('Tong cac phan tu chan trong day la: ', tong);
readln;
end.