Initials · ⁨ตัวอักษรย่อชื่อ⁩

Initials

first is "ada" and last is "lovelace". Store "A.L." in initials — each first letter, capital, each followed by a dot.

Three ideas at once: take a character, make it uppercase, join pieces with +. Build it one step at a time and print what you have so far if it goes wrong.