3. Kuzya the flea can make jumps along a straight line $L$. The starting point for the jumps is at point $A$ on the line $L$, the length of each jump is $h$, and the direction of each jump is chosen randomly and equally likely. Find the probability that, after making from two to five random jumps, Kuzya will be at a distance of $2h$ from $A$ at least once.
Answer: $\quad P(A)=\frac{5}{8}$