program ct;
uses crt;
var b:array[1..1000] of integer;
m,i,S:integer;
begin clrscr;
write('Nhap so phan tu: '); readln(m);
for i:=1 to m do
begin
write('Nhap phan tu thu ',i,': '); readln(b[i]);
if b[i] mod 2=0 then S:=S+b[i];
end;
write('Tong cac so chan cua mang la: ',S);
readln;
end.
Học tốt!