void rotateByOne(int arr[])
{
    int i, first;

    /* Store first element of array */
    first = arr[0];

    for(i=0; i<SIZE-1; i++)
    {
        /* Move each array element to its left */
        arr[i] = arr[i + 1];
    }

    /* Copies the first element of array to last */
    arr[SIZE-1] = first;
}