using read function
0.612063884735107
0.62070107460022
0.599463939666748
0.60235595703125
0.610018014907837
0.603386878967285

tradtional slurp
1.03461217880249
1.0298318862915
1.05549097061157
1.08192896842957
1.02464509010315
1.0180230140686