Short runs of S_50_50_100, S_100_100_400 and S_200_200_1600 from
the ground state
The simulations started from the ground state with E=(0.1,0)
at T=0.004. There were totally 150 passes with the first 100 dicarded
so that the center of mass traveled 1250 grid spacings in the last 50 passes.
