Suggested problems

روضة الرياض للخدمات المنزلية

June 26, 2020, 4:50 p.m. by medoo

Biological Motivation

[روضة الرياض][1]

[شركة تنظيف بالرياض][2]

[شركة تنظيف بالباحة][3] [شركة عزل اسطح بالباحة][4]

[1]: [2]: [3]: [4]:


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