Python Support

Let $R$ be the release year of Python 3.X.0.

By the definition in the statement,

$$R = X + 2011.$$

The end-of-support year is 5 years after the release year, so it is

$$R+5 = X+2016.$$

Therefore, print Support if $R \le Y \le R+5$, and print End of Life otherwise.

The time complexity is $O(1)$.