#include <bits/stdc++.h>
using namespace std;
#define FOR(i,a,b) for (int i=(a);i<(b);i++)
#define RFOR(i,a,b) for (int i=(b)-1;i>=(a);i--)
#define REP(i,n) for (int i=0;i<(n);i++)
#define rep(i,n) for (int i=0;i<(n);i++)
#define RREP(i,n) for (int i=(n)-1;i>=0;i--)
#define ALL(a) (a).begin(),(a).end()
#define all(a) (a).begin(),(a).end()
#define EXIST(s,e) (find(all(s),(e))!=(s).end())
#define exist(s,e) (find(all(s),(e))!=(s).end())
#define FINDi(s,e) distance((s).begin(),find(all(s),(e)))
#define INF (1<<25)
#define ll long long
#define VS vector<string>
#define VI vector<int>
#define vi vector<int>
#define VI2 vector<vector<int>>
#define vi2 vector<vector<int>>
#define v2Resize(s,x,y) s.resize(x); REP(i,s.size()) s[i].resize(y);
#define v2Fill(s,v) REP(v2filliiiiiii,s.size()) fill(all(s[v2filliiiiiii]),v);

#define Pii pair<int,int>
#define P pair;

#define in1(x,m) REP(in1iiiiiiiiiiii,m){int tmpForIn1Macrofjaio; cin>>tmpForIn1Macrofjaio; x.push_back(tmpForIn1Macrofjaio);}
#define in2(v2,x,y) REP(in2iiiiiiiiiiiiii,x) REP(in2jjjjjjjjj,y) cin>>v2[in2iiiiiiiiiiiiii][in2jjjjjjjjj];

#define OUT2(v2) REP(out2iiiiiiiii,v2.size()){ REP(out2jjjjjjjjjjj,v2[out2iiiiiiiii].size()){ cout<<v2[out2iiiiiiiii][out2jjjjjjjjjjj] << " ";}cout<<endl;};
const int mod = 1000000007;
int dy4[] = {0, 0, 1, -1};
int dx4[] = {1, -1, 0, 0};
int dx8[] = {0,1,1,1,0,-1,-1,-1};
int dy8[] = {-1,-1,0,1,1,1,0,-1};

int n;
int V;
int ox, oy;
int L[210][210];
int dist[210][210];
typedef pair<int, Pii> PP;

void dijkstra(int y, int x) {
	priority_queue<PP, vector<PP>, greater<PP>> que;
	rep(i, n)rep(j, n)dist[i][j] = INF;
	dist[y][x] = 0;
	que.push(make_pair(0,Pii(y, x)));

	while (!que.empty()) {
		int c = que.top().first;
		auto now = que.top().second;
		que.pop();
		rep(i,4) {
			int ny = now.first + dy4[i], nx = now.second + dx4[i];
			if (!(0 <= ny && ny < n && 0 <= nx && nx < n))continue;
			if (dist[ny][nx] <= c + L[ny][nx])continue;
			dist[ny][nx] = c + L[ny][nx];
			que.push(make_pair(dist[ny][nx], Pii(ny, nx)));
		}
	}
}

int main() {
	cin >> n >> V >> ox >> oy;
	ox--;
	oy--;
	rep(y, n)
	rep(x, n)cin >> L[y][x];

	dijkstra(0, 0);
	if (dist[n - 1][n - 1] < V) {
		cout << "YES" << endl;
		return 0;
	}
	if (ox == -1 && oy == -1) {
		cout << "NO" << endl;
		return 0;
	}
	int t = (V - dist[oy][ox]) * 2;
	dijkstra(oy, ox);
	if (t - dist[n - 1][n - 1] > 0) {
		cout << "YES" << endl;
	}
	else {
		cout << "NO" << endl;
	}
	return 0;
}