/******************************
* author : @marvinthang *
* date : 14 / 11 / 2021 *
******************************/
#include <bits/stdc++.h>
using namespace std;
#define superspeed ios_base::sync_with_stdio(false);\
cin.tie(NULL);\
//cout.tie(NULL);
#define file(name) freopen(name".inp", "r", stdin);\
freopen(name".out", "w", stdout);
const int MOD = 1e9 + 7; // 998244353;
const double PI = 3.1415926535897932384626433832795; // acos((db)-1); atan(-1.0);
const int dx[] = {-1, 0, 1, 0}, dy[] = {0, 1, 0, -1};
const long long oo = 1e18;
const int MAX = 505;
const int LOG = 60;
int N;
pair <int, int> rmq[MAX][MAX][LOG];
long long K;
int main() {
superspeed;
cin >> N >> K;
if (K <= 2) {
cout << K;
return 0;
}
K -= 2;
for (int i = 1; i <= N; ++i) {
for (int j = 1; j <= N; ++j) {
cin >> rmq[i][j][0].first;
rmq[i][j][0].second = i;
}
}
for (int k = 1; k < LOG; ++k) {
for (int i = 1; i <= N; ++i) {
for (int j = 1; j <= N; ++j) {
pair <int, int> tmp = rmq[i][j][k - 1];
rmq[i][j][k] = rmq[tmp.first][tmp.second][k - 1];
}
}
}
// cout << rmq[1][2][0].second << '\n';
pair <int, int> res = {2, 1};
for (int k = 0; k < LOG; ++k) {
if ((K >> k) & 1) res = rmq[res.first][res.second][k];
// cout << res.first << ' ' << res.second << '\n';
}
cout << res.first;
return 0;
}
