import java.io.IOException;
import java.io.InputStream;
import java.util.HashSet;
import java.util.NoSuchElementException;
import java.util.Set;

class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte(){
        if(ptr < buflen){
            return true;
        }else{
            ptr = 0;
            try{
                buflen = in.read(buffer);
            }catch(IOException e){
                e.printStackTrace();
            }
            if(buflen <=0){
                return false;
            }
        }
        return true;
    }

    private int readByte(){
        if(hasNextByte())return buffer[ptr++];
        else return -1;
    }

    private static boolean isPrintableChar(int c){
        return 33<=c && c<=126;
    }
    public boolean hasNext(){
        while(hasNextByte() && !isPrintableChar(buffer[ptr]))ptr++;
        return hasNextByte();
    }

    public String next(){
        if(!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)){
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }

    public long nextLong(){
        if(!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if(b == '-'){
            minus = true;
            b = readByte();
        }
        if(b < '0' || '9' < b){
            throw new NumberFormatException();
        }
        while(true){
            if('0' <= b && b<='9'){
                n*=10;
                n+=b-'0';
            }else if(b==-1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    public int nextInt(){
        long nl = nextLong();
        if(nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE)throw new NumberFormatException();
        return (int) nl;
    }
    public double nextDoutble(){return Double.parseDouble(next());}
}
public class Main {
    public static void main(String[] args) {
        FastScanner fs = new FastScanner();
        int n = fs.nextInt();
        long k = fs.nextLong();
        int[] a = new int[n];
        Set<Integer> set = new HashSet<Integer>();
        for(int i=0;i<n;i++){
            a[i] = fs.nextInt();
        }
        int now = 1;
        int[] idx = new int[n];
        idx[0] = 1;
        int start = 0;
        int circle = 0;
        for(int i=1;i<=n+1;i++){
            if(set.contains(now)){
                start = idx[now-1];
                circle = (i+1)-start;
                break;
            }else{
                set.add(now);
                idx[now-1] = i+1;
                now = a[now-1];
            }

        }
        if(k<start){
            int current = 1;
            while(k > 0){
                current = a[current-1];
                k--;
            }
            System.out.println(current);
        }else{
            k = k-(start-1);
            k%=circle;
            int current = 1;
            for(int i=0;i<start-1+k;i++){
                current = a[current-1];
            }
            System.out.println(current);
        }
    }
}

Measured memory_bytes: 66176