The container $$A$$ in the figure holds an ideal gas at a pressure of $$5.0\times10^5\ \text{Pa}$$ at $$27\ ^\circ\text{C}$$. It is connected to the container $$B$$ by a thin tube fitted with a closed valve. Container $$B$$ with volume four times the volume of $$A$$ holds the same ideal gas at a pressure $$1.0\times10^5\ \text{Pa}$$ at $$127\ ^\circ\text{C}$$. The valve is now opened to allow the pressure to equalize, but the temperature of each container is maintained as before. The common pressure in the two containers in $$\text{kPa}$$ is