#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define eb emplace_back
#define ll long long
#define pll pair<ll,ll>
#define ff first
#define ss second
#define endl "\n"
const int maxn = 5e2 + 10; // Giữ nguyên định nghĩa maxn
const ll mod = 1e9 + 7;
const ll base = 1e18;
int n;
int a[maxn][maxn], f[maxn][maxn], dp[maxn * maxn];
ll k;
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin >> n >> k;
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
cin >> a[i][j];
--a[i][j];
}
}
int prev = 0, curr = 1;
dp[1] = 0;
dp[2] = 1;
f[prev][curr] = 2;
for (int i = 3; (ll)i <= k; ++i) {
int nxt = a[curr][prev];
prev = curr;
curr = nxt;
if (f[prev][curr] == 0) {
f[prev][curr] = i;
dp[i] = curr;
continue;
}
int j = f[prev][curr];
int cycle = i - j;
int ret = j + ((k - j) % cycle);
cout << dp[ret] + 1 << endl;
return 0;
}
cout << dp[k] + 1 << endl;
return 0;
}
