Suggested problems

Buy Yellow Xanax Bars Online Without Prescriptions Required

March 6, 2023, 6:47 p.m. by drickjoe

Biological Motivation

If you're looking to buy Xanax online, there are a few things you should keep in mind. First of all, make sure you're buying from a reputable source. There are many scammers out there who will try to sell you fake or counterfeit Xanax. Secondly, be aware that taking Xanax can be dangerous. It's important to only take the recommended dose and to consult with a doctor if you have any questions or concerns. Finally, be sure to store your Xanax in a safe place where it will not fall into the wrong hands.



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