Suggested problems

Buy Adderall pills Without Doctor prescription

Feb. 20, 2023, 5:24 a.m. by drickjoe

Biological Motivation

Looking to buy Adderall online? Reddit Pharmacy has the best prices on Adderall and other prescription drugs! We offer a convenient online ordering process and fast shipping so you can get your medication as soon as possible. Plus, our knowledgeable staff is always available to answer any questions you may have. Order now and start feeling better today!



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