$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