Given the following strings:

$"$It is a nice and beautiful day"

"Time and tide wait for no man"

$"$It is a small, small world"

Write a program to

a$)$ count the number of $\text{'}$a$\text{'}$s in each string

b$)$ replace all occurrence of $\text{'}a\text{'}$ with $\text{'}A\text{'}$

c$)$ remove all embedded blanks

d$)$ right and justify each string