import java.io.*;
import java.util.*;

public class Main {
    public static final long mod = (long)1e9+7;
    public static final long INF = Long.MAX_VALUE/2;
    public static final int inf = Integer.MAX_VALUE/2;

    static void solve(InputReader in, PrintWriter out){
        int n = in.ni();
        long k = in.nl();
        int[] a = new int[n];
        for (int i = 0; i < n; i++) a[i] = in.ni() - 1;
        int[] count = new int[n];
        Arrays.fill(count, -1);
        count[0] = 0;
        int syuki = n, last = 0;
        if(k>=n){
            for (int i = 0; i < n; i++) {
                if(count[a[last]]==-1){
                    count[a[last]] = i+1;
                    last = a[last];
                }else{
                    syuki = i-count[a[last]]+1;
                    k -= count[a[last]];
                    k %= syuki;
                    break;
                }
            }
            if(syuki==n) {
                k %= n;
                for (int i = 0; i < n; i++) {
                    if(count[i]==k){
                        out.println(i+1);
                        break;
                    }
                }
            }else {
                for (int i = 0; i < n; i++) {
                    if(count[i]==count[a[last]]+k){
                        out.println(i+1);
                        break;
                    }
                }
            }
        }else{
            for (int i = 0; i < k; i++) {
                count[a[last]] = i+1;
                last = a[last];
            }
            for (int i = 0; i < n; i++) {
                if(count[i]==k){
                    out.println(i+1);
                    break;
                }
            }
        }
    }

    public static void main(String[] args){
        InputReader in = new InputReader(System.in);
        PrintWriter out = new PrintWriter(System.out);
        solve(in, out);
        out.close();
    }
    public static class InputReader{
        private BufferedReader br;
        private StringTokenizer st;
        public InputReader(InputStream is){
            br = new BufferedReader(new InputStreamReader(is));
            st = null;
        }
        public String ns(){
            if(st == null || !st.hasMoreTokens()){
                try{
                    st = new StringTokenizer(br.readLine());
                }catch (Exception e){
                    throw new RuntimeException(e);
                }
            }
            return st.nextToken();
        }
        public int ni(){
            return Integer.parseInt(ns());
        }
        public long nl(){
            return Long.parseLong(ns());
        }
        public double nd(){
            return Double.parseDouble(ns());
        }
        public char nc(){
            return ns().toCharArray()[0];
        }
        public int[] ni(int n){
            int[] a = new int[n];
            for (int i = 0; i < n; i++) {
                a[i] = ni();
            }
            return a;
        }
        public long[] nl(int n){
            long[] a = new long[n];
            for (int i = 0; i < n; i++) {
                a[i] = nl();
            }
            return a;
        }
        public double[] nd(int n){
            double[] a = new double[n];
            for (int i = 0; i < n; i++) {
                a[i] = nd();
            }
            return a;
        }
    }
}

Measured memory_bytes: 54544