from heapq import *
N,V,OY,OX = map(int,input().split())
L= [list(map(int,input().split())) for _ in range(N)]
OX -= 1
OY -= 1
start = (0,0)
goal = (N-1,N-1)
oasys = (OX,OY)
INF = 10 ** 6
dir = [[1, 0], [0, 1], [0, -1], [-1, 0]]

def dijkstra(B,E,V0):
    M = [[INF] * N for _ in range(N)]
    M[B[0]][B[1]] = 0
    Q = [(0,B)]
    while Q:
        d, (x, y) = heappop(Q)
        #if M[x][y] > d:
        #    continue
        for xd, yd in dir:
            x1 = x + xd
            y1 = y + yd
            if 0 <= x1 < N and 0 <= y1 < N:
                d2 = d + L[x1][y1]
                if d2 >= V0:
                    continue
                if M[x1][y1] > d2:
                    M[x1][y1] = d2
                    if (x1,y1) == E:
                        return M[x1][y1]
                    heappush(Q,(d2,(x1, y1)))
    return INF

if dijkstra(start,goal,V) < V:
    print("YES")
else:
    a = dijkstra(start,oasys,V)
    if a >= V:
        print("NO")
    else:
        b = dijkstra(oasys,goal,2 * (V-a))
        if b < 2 * (V - a):
            print("YES")
        else:
            print("NO")