What does it do?
Run it!
Run it!
On the first day of Christmas my true love gave to me
a partridge in a pear tree.
a partridge in a pear tree.
On the second day of Christmas my true love gave to me
two turtle doves
and a partridge in a pear tree.
two turtle doves
and a partridge in a pear tree.
On the third day of Christmas my true love gave to me
three french hens, two turtle doves
and a partridge in a pear tree.
...
three french hens, two turtle doves
and a partridge in a pear tree.
...
•But why?
–http://www.research.microsoft.com/~tball/papers/XmasGift/
–Reverse engineering the Twelve Days of Christmas