Displaying empty list.

3
15

Output of list with data from file added.
3
15
90
80
70
60
50
40



   ****************screen output****************
Making a linklist
making a node, data=3
making a node, data=15
Output for input function.
making a node, data=90
making a node, data=80
making a node, data=70
making a node, data=60
making a node, data=50
making a node, data=40
In the linklist destructor.
destroying a node, data=3
destroying a node, data=15
destroying a node, data=90
destroying a node, data=80
destroying a node, data=70
destroying a node, data=60
destroying a node, data=50
destroying a node, data=40
The list has been destroyed.