text manipulation with columns

Let's say I have a comma-delimited data set in a text file:

a,67,12/12/1212
b,8,1/1/1111
v,-12,3/3/2004

how do I manipulate the column order so I can get:

a,12/12/1212,67
b,1/1/1111,8
v,3/3/2004,-12

Furthermore, what would be a good way to wrap each date field with
hyphens?

Dennis Byrne

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Received on Mon May 3 08:43:27 2004