N,V,ox,oy=map(int,raw_input().split())
ox-=1;oy-=1
L=[]
for _ in xrange(N):
    L.append(map(int,raw_input().split()))
dxdy=zip([-1,0,1,0],[0,-1,0,1])
que=[[0,0]]
visited=[]
Vcount=[[[-1,-1]]*N for _ in xrange(N)]
Vcount[0][0]=[V,1]
while que:#bfs
    cx,cy=que.pop(0)
    [v,count]=Vcount[cy][cx]
    for dx,dy in dxdy:
        nx,ny=cx+dx,cy+dy
        if not(0<=nx<N and 0<=ny<N):continue# in field?
        nv=v-L[ny][nx]
        if nv<=0:continue#death
        if nx==N-1 and ny==N-1 and nv>0:
            print 'YES'
            exit()
        if cx==ox and cy==oy and count>0:#oasis
            nv=nv*2
            count-=1
        if Vcount[ny][nx][0]<nv:
            Vcount[ny][nx]=[nv,count]
            if [nx,ny] not in que:
                que.append([nx,ny])
print 'NO'