New deque:
[ ]
enqueue from front:
[ 500 400 300 200 100 ]
done.
enqueue from back:
[ 500 400 300 200 100 25 50 75 ]
done.
size:
8
dequeue from front
[ 300 200 100 25 50 75 ]
done.
dequeue from back
[ 300 200 100 25 ]
done.
Popping 300. 3 to go! 
Popping 200. 2 to go! 
Popping 100. 1 to go! 
Popping 25. 0 to go! 
Handled an expected Empty exception.
