b64-ascii-01	"Hello"
b64-latin-02	"Café"
b64-cyrillic-03	"Привет"
b64-arabic-04	"مرحبا"
b64-cjk-05	"日本語テスト"
b64-emoji-06	"Salut 👋"
b64-combining-07	"é"
b64-newlines-08	"line1\nline2\r\nline3"
b64-empty-09	""