Iter #0: -0.692986249923706
Iter #50: -0.6926640272140503
Iter #100: -0.6922095417976379
Iter #150: -0.6897097826004028
Iter #200: -0.680963933467865
Iter #250: -0.6806730628013611
Iter #300: -0.6803270578384399
Iter #350: -0.6839126348495483
Iter #400: -0.6851377487182617
