Suggested problems

Microsoft setup bootstrapper has stopped working

Jan. 29, 2020, 6:20 p.m. by x3daudio1_7.dll is missing

Biological Motivation

Troubleshoot [Microsoft Setup Bootstrapper has stopped Working][1] While Installing MS Office” or “Microsoft setup bootstrapper has stopped working“. So, the users just need to follow the procedure.



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