#include <stdio.h>  /*入出力*/
#include <stdlib.h> /*標準ライブラリ*/
#include <string.h> /*文字列*/
#include <math.h>   /*計算*/
#include <assert.h> /*確認*/
#include <ctype.h>  /*文字操作*/
#include <stdbool.h>/*bool型*/
#include <limits.h>/*限界*/
//---------------------------------------------------
#define rep(i, n) for(int  i = 0; i < (n); i++)
#define ABS(a) (((a)>(0))?a:-(a))
#define LL long long
#define MOD 1000000007//10^9+7(素数)
//---------------------------------------------------
LL max(LL a, LL b){
  if (a > b) {
    return a;
  }else return b;
}

int main(void)
{
  LL n;
  LL k;
  LL a[200010] = {0};
  LL work;
  LL ans = 0;
  scanf("%lld %lld", &n, &k);
  for (LL i = 1; i <= n; i++) {
    scanf("%lld", &work);
    a[i] = work;
  }

  //roop
  ans = 1;
  LL count = 0;
  for (size_t i = 0; i < n; i++) {
    ans = a[ans];
    count++;
    if (ans == 1) {
      break;
    }
  }
  //printf("%lld\n",count );

  k = k % count;
  ans = 1;
  while ( k > 0) {
    ans = a[ans];
    //printf("%lld\n", ans);
    k--;
  }
  printf("%lld\n", ans);
  return 0;
}
