@Override
    public void onStackRemoved(UIInventorySlot s, ItemStack previous)
    {
        if(s == slots[43] && previous != null)
        {
            slots[40].stack = null;
            slots[41].stack = null;
            slots[42].stack = null;
        }
        if(s == slots[40] || s == slots[41] || s == slots[42])
        {
            checkCraft = true;
        }
    }