array
a
=
(
"ax"
,
"ay"
,
"az"
)
array
b
=
(
"b1"
,
"b2"
,
"b3"
)
b
.
push
(
a
.
shift
()
)
b
.
push
(
a
.
shift
()
)
b
.
push
(
a
.
shift
()
)
b
.
display
()