Restarting the statistical experiment

This is where I finished my first go at electron energy level shuffling. I realised it was impossible. The idea is that there is a fixed amount of energy in the system. For an electron to go up one level, another electron must lose energy and go down a level.The accounting below didn't work - 2 up and 3 down.

 The problem was about what to do if an electron and the bottom level was told to go down. Now I have decided to roll both dice again. This is what i got after 10 rolls which looks better.