Suggested problems

buy adderall online at the Lowest Prices Summer sale

Feb. 28, 2023, 8:51 a.m. by drickjoe

Biological Motivation

If you're looking to buy Adderall online, Reddit Pharmacy is a great option. They offer instant free shipping on orders over $50, and they have a wide selection of both generic and brand name Adderall. Prices are very competitive, and they also offer a money back guarantee if you're not satisfied with your purchase.

For Order:-


A string is simply an ordered collection of symbols selected from some alphabet and formed into a word; the length of a string is the number of symbols that it contains.

An example of an DNA string (whose alphabet contains the symbols A, C, G, and T) is ATGCTTCAGAAAGGTCTTACG.

Given: A DNA string $s$ of length at most 1000 nucleotides.

Return: Four integers corresponding to the number of times that the symbols A, C, G, and T occur in $s$.

Sample Dataset


Sample Output

20 12 17 21