$(10$ points$)-$ Sequence alignment is used to compare DNA fragments and to

determine similarities between species. Write a MATLAB function that

automatically aligns the given two sequences and returns the alignment score of

the following sequences called A$1$B and A$2$B where the highest alignment occurs

when matching score equals to $5($shown below$).$ Your program should check all

possible alignments until finds the best matching score. Your code should return

a cell array $($shown below$)$ where sequences are aligned and prints alignment

scores for each step in the command window $($shown below$).$

$A2B={?}^{\text{'}}tg$ a t a g t$\text{'}$