\arr1["han"]["weight"] : 60
\arr1["han"]["height"] : 170
\arr1["seo"]["weight"] : 70
\arr1["seo"]["height"] : 180

\arr2["han"]["weight"] : 60
\arr2["han"]["height"] : 170
\arr2["seo"]["weight"] : 70
\arr2["seo"]["height"] : 180