I have two directories that look like this:
$ ls
dirA/ dirB/
$ ls dirA
bg_BG/ cs_CZ/ de_DE/ el_GR/ en_AU/ en_GB/ en_PH/ en_PL/ en_SG/ en_US/ es_AR/
es_ES/ es_MX/ fr_FR/ hu_HU/ id_ID/ it_IT/ ja_JP/ ko_KR/ ms_MY/ nl_NL/ pl_PL/
pt_BR/ pt_PT/ ro_RO/ ru_RU/ th_TH/ tr_TR/ vn_VN/ zh_CN/ zh_MY/ zh_TW/