func findMedian(arr []int32) int32 {
    var median []int32

    sort.Slice(arr, func(i, j int) bool {
        return arr[i] < arr[j]
    })

    if len(arr)%2 == 0 {
        median = append(median, arr[len(arr)/2-1])

    } else {
        median = append(median, arr[len(arr)/2])

    }
    return median[0]

}