void guess_my_function(int arr[], int left, int middle, int right){
        int low = middle - left + 1;
        int high = right - middle;
        int L[] = new int[low];
        int R[] = new int[high];
        int i = 0, j = 0;

        for (i = 0; i < low; i++)
            L[i] = arr[left + i];
        
        for (j = 0; j < high; j++)
            R[j] = arr[middle + 1 + j];
        
        int k = left;
        i = 0;
        j = 0;

        while (i < low && j < high){
            if (L[i] <= R[j]){
                arr[k] = L[i];
                i++;
            } else {
                arr[k] = R[j];
                j++;
            }
            k++;
        }
 
        while (i < low){
            arr[k] = L[i];
            i++;
            k++;
        }
 
        while (j < high){
            arr[k] = R[j];
            j++;
            k++;
        }
    }