The number three (both masculine and feminine trys) is also declined differently:

Jis laukė tavęs tris dienas. He was waiting for you for three days.
Tokiems trims greitiems automobiliams reikėjo gero vairuotojo. Such three fast cars needed a good driver.
Mūsų mokykloje buvo tik trys mokytojos. Only three female teachers were in our school.