#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (n); i++)
using namespace std;
using ll = long long;
using ld = long double;

// g <- pair < v , cost > 
template < class T >
vector< T > dijkstra(vector<vector<pair<int, T>>> &graph, int s) {
    T INF = numeric_limits< T >::max();
    vector<T> dist(graph.size(), INF);
    priority_queue<pair<T,int>, vector<pair<T,int>>, greater<pair<T,int>>> q;
    q.push({dist[s] = T(0), s});
    while(!q.empty()){
        auto [uc, ui] = q.top(); q.pop();
        if(uc != dist[ui]) continue;
        for(auto [vi, vc] : graph[ui]) if(dist[vi] > uc + vc) 
            q.push({dist[vi] = uc + vc, vi});
    }
    return dist;
}


int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    
    int N,V,Ox,Oy; cin >> N >> V >> Ox >> Oy; Ox--, Oy--;
    vector<vector<int>> L(N, vector<int>(N));
    rep(i,N)rep(j,N) cin >> L[i][j];

    auto h = [&](int i, int j) { return i * N + j; };
    int di[] = {0, +1, 0, -1};
    int dj[] = {+1, 0, -1, 0};
    vector<vector<pair<int,int>>> G(N * N);
    rep(i,N)rep(j,N)rep(d,4) {
        int ni = i + di[d], nj = j + dj[d];
        if(0 <= ni && ni < N && 0 <= nj && nj < N) {
            G[h(i, j)].push_back({h(ni, nj), L[ni][nj]});
        }
    }

    auto distS = dijkstra(G, h(0, 0));
    int ok = 0;
    ok |= distS[h(N - 1, N - 1)] < V;
    if(make_pair(Ox, Oy) != make_pair(-1, -1)) {
        auto distO = dijkstra(G, h(Ox, Oy));
        int S = distS[h(Ox, Oy)], T = distO[h(N - 1, N - 1)];
        ok |= S < V && T < (V - S) * 2;
    }
    cout << (ok ? "YES" : "NO") << "\n";
}