Changing substring position in a string

I have a string like this (there is a carriage return at the end of each line):

[1]
[A] Tom
[B] Cherry
[C] Mickey
[D] Donald
[End]

Using SQL functions, I want to change it to:

[1] Tom
[A] Cherry
[B] Mickey
[C] Donald
[D] 
[End]

Please advise. Thanks.