import heapq
h,w=map(int,input().split())
u,d,r,l,k,p=map(int,input().split())
sy,sx,gy,gx=map(int,input().split())
sy-=1;sx-=1;gy-=1;gx-=1
g=[input() for _ in range(h)]
inf=float('inf')
dst=[[inf]*w for _ in range(h)]
confirmed=[[False]*w for _ in range(h)]
q=[]
heapq.heappush(q,(0,sy,sx))
while q:
    cost,y,x=heapq.heappop(q)
    if confirmed[y][x]:
        continue
    confirmed[y][x]=True
    dst[y][x]=cost
    dy=[-1,1,0,0]
    dx=[0,0,1,-1]
    move_cost=[u,d,r,l]
    for i in range(4):
        ny=y+dy[i]
        nx=x+dx[i]
        if not(0<=ny<h and 0<=nx<w):
            continue
        if confirmed[ny][nx]:
            continue
        if g[ny][nx]=='#':
            continue
        to_cost=cost+move_cost[i]
        if g[ny][nx]=='@':
            to_cost+=p
        heapq.heappush(q,(to_cost,ny,nx))

print('Yes' if dst[gy][gx]<=k else 'No')