题目描述
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.
-----Constraints-----
- $2 \leq N \leq 2 \times 10^5$
- $1 \leq A_i \leq N$
- $1 \leq K \leq 10^{18}$
-----Input-----
Input is given from Standard Input in the following format:
N K
$A_1 A_2 \dots A_N$
-----Output-----
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.
-----Sample Input-----
4 5
3 2 4 1
-----Sample Output-----
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.
输入格式
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输出格式
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