#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vi  = vector<int>; using vb  = vector<bool>; using vd  = vector<double>; using vl  = vector<ll>;
using vvi = vector<vi>;  using vvb = vector<vb>;   using vvd = vector<vd>;     using vvl = vector<vl>;

#define REP(i,n) for(ll i=0; i<(n); ++i)
#define FOR(i,b,n) for(ll i=(b); i<(n); ++i)
#define ALL(v) (v).begin(), (v).end()
#define TEN(x) ((ll)1e##x)

typedef ll Id;
typedef ll Distance;
#define INF_DIST numeric_limits<Distance>::max()
struct Edge{Id to; Distance cost;};
typedef vector<vector<Edge>> Graph;
vector<Distance> dijkstra(Id s, const Graph & g){
    vector<Distance> d(g.size(), INF_DIST);
    d[s] = 0;
    
    typedef pair<Distance, Id> P;
    priority_queue<P, vector<P>, greater<P>> que;
    que.push(P(0, s));
    while(!que.empty()){
        P p = que.top(); que.pop();
        Id v = p.second;
        if(d[v] < p.first) continue;
        for (Edge e : g[v]) if(d[e.to] > d[v] + e.cost){
            d[e.to] = d[v] + e.cost;
            que.push(P(d[e.to], e.to));
        }
    }

    return d;
}

ll dx[] = { -1, 0, 1, 0 };
ll dy[] = { 0, -1, 0, 1 };
bool contain(ll x, ll max_x) { return 0 <= x && x < max_x; }

int main() {
	ll n, v, ox, oy;
	cin >> n >> v >> ox >> oy;
	vvl field(n, vl(n));
	REP(i, n) REP(j, n) cin >> field[i][j];

	Graph g(n*n);
	REP(i, n) REP(j, n) {
		REP(d, 4) if (contain(i + dx[d], n) && contain(j + dy[d], n)) {
			g[i*n + j].push_back({ (i + dx[d])*n + (j + dy[d]), field[i + dx[d]][j + dy[d]] });
		}
	}

	auto dist = dijkstra(0, g);
	if (dist[n*n - 1] < v) {
		cout << "YES" << endl;
	}else if (ox != 0) {
		v -= dist[(ox-1)*n + oy-1]; v *= 2;
		dist = dijkstra((ox-1)*n+oy-1, g);
		cout << (dist[n*n - 1] < v ? "YES" : "NO") << endl;
	} else {
		cout << "NO" << endl;
	}

	return 0;
}