//  [java]
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 *
 * @author iavanish
 */
public class Main {

    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        FastReader in = new FastReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        DTeleporter solver = new DTeleporter();
        solver.solve(1, in, out);
        out.close();
    }

    static class DTeleporter {

        public void solve(int testNumber, FastReader in, PrintWriter out) {
            int n = in.nextInt();
            long k = in.nextLong();

            int[] a = new int[n + 1];
            for (int i = 1; i <= n; i++) {
                a[i] = in.nextInt();
            }

            boolean[] isVisited = new boolean[n + 1];
            int curr = 1;
            while (!isVisited[curr]) {
                isVisited[curr] = true;
                curr = a[curr];
            }

            int distanceToCurr = 0;
            int temp = 1;
            while (temp != curr) {
                distanceToCurr++;
                temp = a[temp];
            }

            int revisitCurr = 1;
            temp = a[curr];
            while (temp != curr) {
                revisitCurr++;
                temp = a[temp];
            }

            if (k <= distanceToCurr) {
                temp = 1;
                while (k-- > 0) {
                    temp = a[temp];
                }
                out.println(temp);
            } else {
                k -= distanceToCurr;
                k %= revisitCurr;
                temp = curr;
                while (k-- > 0) {
                    temp = a[temp];
                }
                out.println(temp);
            }
        }

    }

    static class FastReader {

        private final int BUFFER_SIZE = 1 << 16;
        private final InputStream inputStream;
        private final byte[] buffer;
        private int bufferPointer;
        private int bytesRead;

        public FastReader() {
            this.inputStream = new DataInputStream(System.in);
            this.buffer = new byte[BUFFER_SIZE];
            this.bufferPointer = bytesRead = 0;
        }

        public FastReader(InputStream inputStream) {
            this.inputStream = inputStream;
            this.buffer = new byte[BUFFER_SIZE];
            this.bufferPointer = bytesRead = 0;
        }

        public FastReader(String fileName) {
            try {
                this.inputStream = new DataInputStream(new FileInputStream(fileName));
                this.buffer = new byte[BUFFER_SIZE];
                this.bufferPointer = bytesRead = 0;
            } catch (FileNotFoundException e) {
                throw new RuntimeException(e);
            }
        }

        public int nextInt() {
            int nextInt = 0;
            byte c = read();
            while (c <= ' ') {
                c = read();
            }
            boolean negative = (c == '-');
            if (negative) {
                c = read();
            }
            do {
                nextInt = nextInt * 10 + c - '0';
            } while ((c = read()) >= '0' && c <= '9');
            if (negative) {
                return -nextInt;
            }
            return nextInt;
        }

        public long nextLong() {
            long nextLong = 0;
            byte c = read();
            while (c <= ' ') {
                c = read();
            }
            boolean negative = (c == '-');
            if (negative) {
                c = read();
            }
            do {
                nextLong = nextLong * 10 + c - '0';
            } while ((c = read()) >= '0' && c <= '9');
            if (negative) {
                return -nextLong;
            }
            return nextLong;
        }

        public void fillBuffer() {
            try {
                bytesRead = inputStream.read(buffer, bufferPointer = 0, BUFFER_SIZE);
                if (bytesRead == -1) {
                    buffer[0] = -1;
                }
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }

        public byte read() {
            if (bufferPointer == bytesRead) {
                fillBuffer();
            }
            return buffer[bufferPointer++];
        }

    }

}