#include <bits/stdc++.h>
#define endl '\n'
#define int long long
using namespace std;
vector<int> adjlst[505];
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
int N, K;
cin >> N >> K;
for (int i = 1; i <= N; i++){
for (int i2 = 1; i2 <= N; i2++){
int temp = 0;
cin >> temp;
adjlst[i].push_back(temp);
}
}
int curPerson = 1;
int prevShow = 0;
for (int i = 1; i <= K - 1; i++){
if (prevShow == 0){
curPerson += 1;
prevShow = 1;
}
else{
int tempPrev = prevShow;
prevShow = curPerson;
curPerson = adjlst[curPerson][tempPrev-1];
}
}
cout << curPerson << endl;
}