from heapq import heappush, heappop
N,V,Ox,Oy=map(int,raw_input().split())
L=[[0 for i in range(N)] for j in range(N)]
for i in range(N):
   L[i] = map(int,raw_input().split())

P=[[-1 for i in range(N)] for j in range(N)]
pq=[]
heappush(pq,(0,0,0))
d1 = [1,0,-1,0]
d2 = [0,1,0,-1]
while len(pq) != 0:
   dist,x,y = heappop(pq)
   if P[x][y] != -1:
      continue
   P[x][y]=dist
   for dx,dy in zip(d1,d2):
      nx = x+dx
      ny = y+dy;
      if nx>=0 and ny >= 0 and nx <N and ny <N:
         heappush(pq,(dist+L[nx][ny],nx,ny))
P2=[[-1 for i in range(N)] for j in range(N)]
pq2=[]
Ox-=1
Oy-=1
if Ox >= 0 and Oy >= 0 and Ox <N and Oy <N:
   heappush(pq2,(0,Ox,Oy))
   while len(pq2)!=0:
      dist,x,y = heappop(pq2)
      if P2[x][y] != -1:
         continue
      P2[x][y]=dist
      for dx,dy in zip(d1,d2):
         nx = x+dx
         ny = y+dy;
         if nx>=0 and ny >= 0 and nx <N and ny <N:
            heappush(pq2,(dist+L[nx][ny],nx,ny))
#print P[N-1][N-1], P[Ox][Oy], P2[N-1][N-1]
if P[N-1][N-1] < V:
   #print P[N-1][N-1]
   print "YES"
elif P2[N-1][N-1]!=-1 and 2*(V-P[Ox][Oy])-P2[N-1][N-1] > 0:
   #print P[Ox][Oy], ",", P2[N-1][N-1]
   print "YES"
else:
   print "NO"