[Header]

[Test]
(* test 1 - easy 8-digit case *)
vocalize "38792465"

[Value]
[["삼"; "천"; "팔"; "백"; "칠"; "십"; "구"]; ["이"; "천"; "사"; "백"; "육"; "십"; "오"]]

[Test]
(* test 2 - easy 7-digit case *)
vocalize "4653879"

[Value]
[["사"; "백"; "육"; "십"; "오"]; ["삼"; "천"; "팔"; "백"; "칠"; "십"; "구"]]

[Test]
(* test 3 - handling digit '1' & '0' *)
vocalize "8801865"

[Value]
[["팔"; "백"; "팔"; "십"]; ["천"; "팔"; "백"; "육"; "십"; "오"]]

[Test]
(* test 4 - handling digit '1' & '0' *)
vocalize "8090461"

[Value]
[["팔"; "백"; "구"]; ["사"; "백"; "육"; "십"; "일"]]

[Test]
(* test 5 - handling word "000" *)
vocalize "0002465"

[Value]
[["영"]; ["이"; "천"; "사"; "백"; "육"; "십"; "오"]]

[Test]
(* test 6 - handling word "0000" *)
vocalize "8800000"

[Value]
[["팔"; "백"; "팔"; "십"]; ["영"]]