Aug. 19, 2020, 3:55 a.m. by hule09
Made by artists who transform their dolls into [realistic record dolls] by adding real hair, eyelashes, and weight, they are mainly bought by mothers mourning the loss of a child. Although they still meet the emotional needs of women, most collectors love to play with them because they are so beautiful and because they are so realistic.
An example of an DNA string (whose alphabet contains the symbols A, C, G, and T) is ATGCTTCAGAAAGGTCTTACG.
Given: A DNA string
Return: Four integers corresponding to the number of times that the symbols A, C, G, and T occur in
20 12 17 21