from sys import stdin
from heapq import heappush, heappop

h, w = [int(x) for x in stdin.readline().rstrip().split()]
u, d, r, l, k, p = [int(x) for x in stdin.readline().rstrip().split()]
xs, ys, xt, yt = [int(x) for x in stdin.readline().rstrip().split()]
c = [stdin.readline().rstrip() for _ in range(h)]

kabe = ["#" for i in range(w+2)]
data = [kabe]
for i in range(h):
    kari = ["#"]
    for j in range(w):
        kari.append(c[i][j])
    kari.append("#")
    data.append(kari)
data.append(kabe)

hq = [(0,xs,ys)]
infty = 10**18
dist = [[infty for i in range(w+2)] for j in range(h+2)]
done = [[False for i in range(w+2)] for j in range(h+2)]
dist[xs][ys] = 0
while hq:
    cost, nowx, nowy = heappop(hq)
    if not done[nowx][nowy]:
        if (nowx == xt) & (nowy == yt):
            if cost <= k:
                print("Yes")
            else:
                print("No")
            exit()
        done[nowx][nowy] = True
        if (data[nowx-1][nowy] != "#") & (not done[nowx-1][nowy]):
            nextcost = cost + u
            if data[nowx-1][nowy] == "@":
                nextcost += p
            if (dist[nowx-1][nowy] > nextcost):
                dist[nowx-1][nowy] = nextcost
                heappush(hq, (nextcost, nowx-1, nowy))
        if (data[nowx+1][nowy] != "#") & (not done[nowx+1][nowy]):
            nextcost = cost + d
            if data[nowx+1][nowy] == "@":
                nextcost += p
            if (dist[nowx+1][nowy] > nextcost):
                dist[nowx+1][nowy] = nextcost
                heappush(hq, (nextcost, nowx+1, nowy))
        if (data[nowx][nowy-1] != "#") & (not done[nowx][nowy-1]):
            nextcost = cost + l
            if data[nowx][nowy-1] == "@":
                nextcost += p
            if (dist[nowx][nowy-1] > nextcost):
                dist[nowx][nowy-1] = nextcost
                heappush(hq, (nextcost, nowx, nowy-1))
        if (data[nowx][nowy+1] != "#") & (not done[nowx][nowy+1]):
            nextcost = cost + r
            if data[nowx][nowy+1] == "@":
                nextcost += p
            if (dist[nowx][nowy+1] > nextcost):
                dist[nowx][nowy+1] = nextcost
                heappush(hq, (nextcost, nowx, nowy+1))

print("No")