Rules: Easy as ABC

Place the letters in the given range once in every row and column. Letters on the outside indicate that this letter is seen first in that row or column when looking from that side. In case a letter is accompanied by a number, the number indicates at what position you come across the letter when looking from that side (e.g. B3 means the B is the third letter encountered when looking form that side).

The example uses letters A-C.