# Suggested problems

## Guide to Solve Optimum Online Email Problems

May 3, 2022, 5:39 a.m. by gerrymax

## Biological Motivation

People may use and access all their email addresses on one platform with Optimum Email. However, some customers have had problems with Optimum email. If you notice that your [Optimum email not updating][1], double-check that a problem with the service provider doesn't cause the problem. As a result, you'll need to verify the Optimum email's status. Another reason could be a lack of internet access. As a result, you must ensure that the device you are using to access your Optimum email account has sufficient internet access. If you've been using the Optimum email app for a while, your device has built up a temporary cache. In this scenario, it's a good idea to clear the cache for the Optimum app on your device at regular intervals to keep Optimum email running smoothly.

## Problem

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

AGCTTTTCATTCTGACTGCAACGGGCAATATGTCTCTGTGTGGATTAAAAAAAGAGTGTCTGATAGCAGC


## Sample Output

20 12 17 21