C7

program cau7;
uses crt;
var i,n,s:integer;
var a:array[1..100] of integer;

begin
 clrscr;s:=0;
 write('Nhap n= ');readln(n);
 for i:=1 to n do
  begin
   write('a[',i,']= ');readln(a[i]);
   if a[i] mod 2 = 0 then s:=s+a[i];
  end;
  write('Tong cac so chan trong day la: ',s);
  readln;
end.