from heapq import heapify,heappop,heappush

H,W=map(int,input().split())
U,D,R,L,K,P=map(int,input().split())
xs,ys,xt,yt=map(int,input().split())

C=["*"*(W+2)]
for _ in range(H):
    C.append("*"+input()+"*")
C.append("*"*(W+2))

inf=float("inf")
DP=[[inf]*(W+2) for _ in range(H+2)]; DP[xs][ys]=0
Q=[(0,(xs,ys))]

V=[((1,0),U),((-1,0),D),((0,1),R),((0,-1),L)]

while Q:
    d,(x,y)=heappop(Q)

    if DP[x][y]>d:
        continue

    if x==xt and y==yt:
        break

    for (a,b),c in V:
        if 1<=x+a<=H and 1<=y+b<=W and C[x+a][y+b]!="#":
            if C[x+a][y+b]==".":
                m=d+c
            else:
                m=d+c+P
        else:
            continue

        if DP[x+a][y+b]>m:
            DP[x+a][y+b]=m
            heappush(Q,(m,(x+a,y+b)))

print("Yes" if DP[xt][yt]<=K else "No")