Thanks @ Debashish Deka

here the question asks only for selection and not for an arrangement of the selected nos. This is where I got confused. pick 3 or 5 elements, remaining elements will remain sorted since all are distinct nos.

here the question asks only for selection and not for an arrangement of the selected nos. This is where I got confused. pick 3 or 5 elements, remaining elements will remain sorted since all are distinct nos.