new stack of size 5
new queue of size 5
new linkedlist
push 1
push 2
push 3
push 4
push 5
push 6
push 7
push 8
push 9
push 10
dump stack
enqueue head 15
enqueue head 14
enqueue head 13
enqueue head 12
enqueue head 11
enqueue tail 16
enqueue tail 17
enqueue tail 18
enqueue tail 19
enqueue tail 20
dump queue
insert front 21
insert front 22
insert front 23
insert front 24
insert front 25
insert front 26
insert front 27
insert front 28
insert front 29
insert front 30
dump linkedlist
pop
top +
top +
pop -
pop +
pop -
pop +
pop -
pop +
pop -
pop +
pop -
push accumulator
dump stack
head +
tail +
dequeue head +
dequeue tail -
dequeue head +
dequeue tail -
enqueue head accumulator
enqueue tail accumulator
dump queue
remove front +
remove back +
front +
back +
insert front accumulator
dump linkedlist