push one two three
push 1 2 3
push I II III
var x
var x.a
var x.b
var y
var y.c
var y.d
var y.d.1
var y.d.2
var y.d.3
pop $x
pop $x.a
pop $x.b
pop $y
pop $y.c
pop $y.d
pop $y.d.1
pop $y.d.2
pop $y.d.3
push Done
output