new
empty 0 1
empty 1 1
push 0 10
empty 0 0
empty 1 1
push 0 11
push 0 12
push 1 20
empty 0 0
empty 1 0
push 1 21
push 1 22
push 1 23
push 1 24
capacity 10
size 0 3
size 1 5
pop 1 24
pop 0 12
pop 1 23
pop 0 11
pop 1 22
pop 1 21
empty 0 0
empty 1 0
pop 0 10
empty 0 1
empty 1 0
pop 1 20
empty 0 1
empty 1 1
push 0 30
push 1 31
assign
	pop 0 30
	pop 1 31
	delete
exit
pop 0 30
pop 1 31
delete
summary
exit