#D2605. Teleporter
Teleporter
Teleporter
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.
Examples
Input
4 5 3 2 4 1
Output
4
Input
6 727202214173249351 6 5 2 5 3 2
Output
2
inputFormat
Input
Input is given from Standard Input in the following format:
N K A_1 A_2 \dots A_N
outputFormat
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.
Examples
Input
4 5 3 2 4 1
Output
4
Input
6 727202214173249351 6 5 2 5 3 2
Output
2
样例
6 727202214173249351
6 5 2 5 3 2
2