Well, according to this formula, we have one and three. So, four molecules, four moles of molecules on our reactive side, and only two moles of molecules on our product side. So that means, by decreasing volume, thereby increasing pressure, our system will shift this way, rightward? Because if our system goes this way, it's going to produce on average, less moles of molecules than on this side. So, our system will try to counter the increase in pressure by decreasing the pressure by going this way to decrease the number of total molecules found in our system. If we have less molecules in our system, that means less molecules are colliding with the walls of our container.