Suppose we have 3 distinguishable hydrogen molecules (H2), and each molecule has 4 quantized vibrational states that range from 0 to 3. The ground vibrational state of each molecule is 0, and this microstate can be represented as (0,0,0). If the molecule is given one photon, the energy state will advance by one, and the microstate may be represented as (1,0,0), (0,1,0), or (0,0,1). If we distribute 3 photons in the system, what is the probability of observing a microstate (1,1,1)? Hint: first consider how many configurations (different ways of populating the energy quanta) before counting the number of microstates.