What filename do you want to read? test1.txt
Read: add 50
Adding took 0 steps.
List is now [50] size=1 [50] size=1

Read: add 30
Adding took 0 steps.
List is now [30 50] size=2 [50 30] size=2

Read: add 80
Adding took 0 steps.
List is now [30 50 80] size=3 [80 50 30] size=3

Read: add 40
Adding took 1 steps.
List is now [30 40 50 80] size=4 [80 50 40 30] size=4

Read: add 60
Adding took 1 steps.
List is now [30 40 50 60 80] size=5 [80 60 50 40 30] size=5

Read: add 10
Adding took 0 steps.
List is now [10 30 40 50 60 80] size=6 [80 60 50 40 30 10] size=6

Read: add 55
Adding took 2 steps.
List is now [10 30 40 50 55 60 80] size=7 [80 60 55 50 40 30 10] size=7

Read: add 1000
Adding took 0 steps.
List is now [10 30 40 50 55 60 80 1000] size=8 [1000 80 60 55 50 40 30 10] size=8

Read: add 400
Adding took 7 steps.
List is now [10 30 40 50 55 60 80 400 1000] size=9 [1000 400 80 60 55 50 40 30 10] size=9

Read: clear
List is now [] size=0