from heapq import heappush, heappop
from collections import defaultdict

N, V, X, Y = map(int, input().split())
X -= 1
Y -= 1

L = [list(map(int, input().split())) for _ in range(N)]

minDistFromOrigin = [[float('inf')] * N for _ in range(N)]

que = [(0, 0, 0)]
while que:
    d, x, y = heappop(que)

    if minDistFromOrigin[x][y] <= d:
        continue
    minDistFromOrigin[x][y] = d

    for nx in [x - 1, x + 1]:
        if 0 <= nx < N:
            heappush(que, (d + L[nx][y], nx, y))
    for ny in [y - 1, y + 1]:
        if 0 <= ny < N:
            heappush(que, (d + L[x][ny], x, ny))

if minDistFromOrigin[N - 1][N - 1] < V:
    print('YES')
    exit()

if 0 <= X < N and 0 <= Y < N:
    minDistFromOasis = [[float('inf')] * N for _ in range(N)]
    que = [(0, X, Y)]
    while que:
        d, x, y = heappop(que)

        if minDistFromOasis[x][y] <= d:
            continue
        minDistFromOasis[x][y] = d

        for nx in [x - 1, x + 1]:
            if 0 <= nx < N:
                heappush(que, (d + L[nx][y], nx, y))
        for ny in [y - 1, y + 1]:
            if 0 <= ny < N:
                heappush(que, (d + L[x][ny], x, ny))

    life = (V - minDistFromOrigin[X][Y]) * 2
    if life > minDistFromOasis[N - 1][N - 1]:
        print('YES')
        exit()

print('NO')