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,V]]
visited=[]
while que:
    cx,cy,v=que.pop(0)
    for dx,dy in dxdy:
        nx,ny=cx+dx,cy+dy
        if not(0<=nx<N and 0<=ny<N):continue
        nv=v-L[ny][nx]
        if nx==N-1 and ny==N-1 and nv>0:
            print 'YES'
            exit()
        if not(0<=nx<N and 0<=ny<N):continue
        if cx==ox and cy==oy:
            nv=nv*2
        if nv>0 and [nx,ny] not in visited:
            que.append([nx,ny,nv])
            visited.append([nx,ny])
else:
    print 'NO'