Help me plz
For integers $n$, let \[f(n) = \left\{ \begin{array}{cl} n & \text{ if }n\text{ is odd}, \\ n -1 & \text{ if }n\text{ is even}. \end{array} \right.\] Find $f(f(f(f(f(4)))))$.
Find \(f(f(f(f(f(4)))))\)
f(4) = 4 -1 = 3
f (f(4)) = f(3) = 3
f (f(f(4))) = f(3) = 3
f(f(f(f(4)))) = f(3) = 3
f(f(f(f(f(4))))) = f(3) = 3
+817 
