#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
typedef pair<ll, ll> p_ll;

template<class T>
void debug(T itr1, T itr2) { auto now = itr1; while(now<itr2) { cout << *now << " "; now++; } cout << endl; }
#define repr(i,from,to) for (int i=(int)from; i<(int)to; i++)
#define all(vec) vec.begin(), vec.end()
#define rep(i,N) repr(i,0,N)
#define per(i,N) for (int i=(int)N-1; i>=0; i--)

const ll MOD = pow(10,9)+7;
const ll LLINF = pow(2,61)-1;
const int INF = pow(2,30)-1;

vector<ll> fac;
void c_fac(int x=pow(10,6)+10) { fac.resize(x,true); rep(i,x) fac[i] = i ? (fac[i-1]*i)%MOD : 1; }
ll inv(ll a, ll m=MOD) { ll b = m, x = 1, y = 0; while (b!=0) { int d = a/b; a -= b*d; swap(a,b); x -= y*d; swap(x,y); } return (x+m)%m; }
ll nck(ll n, ll k) { return fac[n]*inv(fac[k]*fac[n-k]%MOD)%MOD; }
ll gcd(ll a, ll b) { if (a<b) swap(a,b); return b==0 ? a : gcd(b, a%b); }
ll lcm(ll a, ll b) { return a/gcd(a,b)*b; }

// ----------------------------------------------------------------------
// ----------------------------------------------------------------------

struct edge { p_ll to; ll d; };
vector<vector<vector<edge>>> adj;

vector<vector<ll>> dijkstra(int n=0, int m=0) {
  int N = adj.size(), M = adj[0].size();
  auto c = [](const pair<p_ll, ll> &x, const pair<p_ll, ll> &y){return x.second>y.second;};
  priority_queue<pair<p_ll, ll>, vector<pair<p_ll, ll>>, decltype(c)> q(c);
  vector<vector<ll>> result(N,vector<ll>(M,LLINF)); result[n][m] = 0; q.push(make_pair(make_pair(n,m),0));
  while(q.size()) {
    pair<p_ll, ll> now = q.top(); q.pop();
    p_ll np = now.first;
    ll np1 = np.first, np2 = np.second;
    ll nd = now.second;
    if (nd>result[np1][np2]) continue;
    for (auto x: adj[np1][np2]) {
      ll xt1 = x.to.first, xt2 = x.to.second;
      if (result[xt1][xt2]<=result[np1][np2]+x.d) continue;
      q.push(make_pair(make_pair(xt1, xt2), result[np1][np2]+x.d));
      result[xt1][xt2] = result[np1][np2]+x.d;
    }
  }
  return result;
}

// ----------------------------------------------------------------------
// ----------------------------------------------------------------------

int main() {
  ll N, V, ox, oy; cin >> N >> V >> ox >> oy; ox--; oy--;
  ll L[N][N]; rep(i,N) rep(j,N) cin >> L[i][j];
  adj.resize(N); rep(i,N) adj[i].resize(N);
  rep(i,N) rep(j,N) {
    if (i!=0  ) adj[i][j].push_back({make_pair(i-1,j), L[i-1][j]});
    if (i!=N-1) adj[i][j].push_back({make_pair(i+1,j), L[i+1][j]});
    if (j!=0  ) adj[i][j].push_back({make_pair(i,j-1), L[i][j-1]});
    if (j!=N-1) adj[i][j].push_back({make_pair(i,j+1), L[i][j+1]});
  }

  vector<vector<ll>> sd = dijkstra(0,0); 
  // rep(i,N) debug(all(sd[i]));
  string result = "NO";
  if (ox==-1&&oy==-1) {
    if (sd[N-1][N-1]<V) result = "YES";
  }
  else {
    vector<vector<ll>> od = dijkstra(ox,oy); 
    if ((V-sd[ox][oy])*2-od[N-1][N-1]>0) result = "YES";
  }
  cout << result << endl;
  return 0;
}