from heapq import heappush, heappop

def dijkstra(y, x):
    dp = [[float('inf')] * N for _ in range(N)]
    dp[0][0] = 0
    hq = [(0, y, x)]
    while(hq):
        h, sy, sx = heappop(hq)
        if dp[sy][sx] < h:
            continue
        for dy, dx in [(1, 0), (0, 1), (-1, 0), (0, -1)]:
            ny = sy + dy
            nx = sx + dx
            if 0 <= ny < N and 0 <= nx < N and dp[ny][nx] > h + sand_area[ny][nx]:
                dp[ny][nx] = h + sand_area[ny][nx]
                heappush(hq, (h + sand_area[ny][nx], ny, nx))
    return dp

N, V, Ox, Oy = map(int, input().split())
Ox -= 1
Oy -= 1
sand_area = [list(map(int, input().split())) for _ in range(N)]
dp1 = dijkstra(0, 0)
if Ox == Oy == -1:
    if dp1[N - 1][N - 1] < V:
        print("YES")
    else:
        print("NO")
    exit()
dp2 = dijkstra(Oy, Ox)
if dp1[N - 1][N - 1] < V or (V - dp1[Oy][Ox]) * 2 > dp2[N - 1][N - 1]:
    print("YES")
else:
    print("NO")