Were you supposed to type the word in English? I haven't been asked to type anything in Arabic yet. I'm curious how you got this question so early on. I'm level 8 and just got the word "Korea" right now. You are not even level 1, how did you get it? Are you taking the test to test out of certain levels?
The difference between کوریا and كوريا is in ی instead of ي. These are two different Unicode characters which look the same in their initial and medial forms, but the one used in Arabic keeps the dots in all positions. You might need to use Arabic keyboard layout (rather than Persian or Urdu) to get the right letter.