To solve this question we have to make deduct these 2 years. 2103 minus 1990 will give the answer.
You are 113 years old.
(1356 months are passed.)
From 1990 to 2103 there are 113 years. If you want to learn your age in 2103 (born in 1990) your age is 113.
Let's see what will be your age if you born +1 or -1 from that date.