#include <algorithm>
#include <iostream>
#include <vector>
#include <queue>
#include <tuple>
using namespace std;

template <typename T>
struct Edge { int src, dst; T cost;
    Edge(int dst, T cost) : src(-1), dst(dst), cost(cost) { }
    Edge(int src, int dst, T cost) : src(src), dst(dst), cost(cost) { }
};
template <typename T> using Edges = vector<Edge<T>>;
template <typename T> using WeightedGraph = vector<Edges<T>>;
template <typename T> using Matrix = vector<vector<T>>;

template <typename T>
vector<T> dijkstra(const WeightedGraph<T> &g, int s) {
    const T INF = numeric_limits<T>::max();
    vector<T> dist(g.size(), INF);
    vector<int> prev(g.size(), -1);
    using Pi = pair<T, int>;
    priority_queue<Pi, vector<Pi>, greater<Pi>> que;
    dist[s] = 0; que.emplace(dist[s], s);
    while (!que.empty()) {
        T cost; int u; tie(cost, u) = que.top(); que.pop();
        if (dist[u] < cost) continue;
        for (auto &e: g[u]) {
            int v = e.dst; T nc = e.cost;
            if (dist[v] <= dist[u] + nc) continue;
            dist[v] = dist[u] + nc; prev[v] = u;
            que.emplace(dist[v], v);
        }
    }
    return dist;
}

int main() {
    int n, v, oi, oj; cin >> n >> v >> oj >> oi; oi--, oj--;
    WeightedGraph<int> g(n * n);
    auto idx = [&](int i, int j) { return i * n + j; };
    auto out_field = [&](int i, int j) {
        return i < 0 || i >= n || j < 0 || j >= n;
    };
    int dij[] = {0, 1, 0, -1, 0};
    for (int i = 0; i < n; i++) for (int j = 0; j < n; j++) {
        int cost; cin >> cost;
        for (int k = 0; k < 4; k++) {
            int ni = i + dij[k], nj = j + dij[k + 1];
            if (out_field(ni, nj)) continue;
            g[idx(ni, nj)].emplace_back(idx(i, j), cost);
        }
    }
    auto dist_s = dijkstra(g, idx(0, 0));
    bool ok = dist_s[idx(n - 1, n - 1)] < v;
    if (oi != -1 && oj != -1) {
        auto dist_o = dijkstra(g, idx(oi, oj));
        ok |= dist_o[idx(n - 1, n - 1)] < 2 * (v - dist_s[idx(oi, oj)]);
    }
    if (ok) cout << "YES" << endl;
    else cout << "NO" << endl;
    return 0;
}