size
capacity
list
push:ACK
push:ACY
push:AEX
push:AKR
push:ALB
push:AMA
push:ART
push:ATL
push:AUG
size
capacity
list
peek:0
peek:1
peek:2
peek:3
peek:4
peek:5
peek:6
peek:7
peek:8
peek:9
peek:-1
peek:9999999
peek:-9999999
pop
pop
pop
pop
pop
pop
pop
pop
pop
size
capacity
list
pop
size
capacity
list
