int itemId = _items[i * 4 + 0];
int count = _items[i * 4 + 1];
int price = _items[i * 4 + 2];
int enchant = _items[i * 4 + 3];
tradeList.addItemByItemId(itemId, count, price, enchant);
cost += count * price;
if (cost > Integer.MAX_VALUE)
{
player.sendPacket(new SystemMessage(SystemMessageId.YOU_HAVE_EXCEEDED_QUANTITY_THAT_CAN_BE_INPUTTED));