Score: $400$ points
The Kingdom of Takahashi has $N$ towns, numbered $1$ through $N$.
There is one teleporter in each town. The teleporter in Town $i$ $(1 \leq i \leq N)$ sends you to Town $A_i$.
Takahashi, the king, loves the positive integer $K$. The selfish king wonders what town he will be in if he starts at Town $1$ and uses a teleporter exactly $K$ times from there.
Help the king by writing a program that answers this question.
Input is given from Standard Input in the following format:
$N$ $K$ $A_1$ $A_2$ $\dots$ $A_N$
Print the integer representing the town the king will be in if he starts at Town $1$ and uses a teleporter exactly $K$ times from there.
4 5 3 2 4 1
4
If we start at Town $1$ and use the teleporter $5$ times, our travel will be as follows: $1 \to 3 \to 4 \to 1 \to 3 \to 4$.
6 727202214173249351 6 5 2 5 3 2
2