AMO 2023 – Primary 2 (Grade 2) Question 2

The two-digit whole number $\overline{EF}$ satisfies $\overline{EF}+8=\overline{AB5}$. The digits $A,B,E,F$ are in $\{0,1,2,3,4,5,6,7,8,9\}$, and $A$ is not zero. What is $A+B+E+F$?