H, W = gets.split(" ").map{|s| s.to_i}
U, D, R, L, K, P = gets.split(" ").map{|s| s.to_i}
xs, ys, xt, yt = gets.split(" ").map{|s| s.to_i - 1}
c = []
H.times {
	c << gets.strip
}

dir = [[-1, 0, U], [1, 0, D], [0, 1, R], [0, -1, L]]

d = Array.new(H) {Array.new(W, Float::INFINITY)}
d[xs][ys] = 0

que = [[xs, ys, 0]]

while que.length > 0 do
	x, y, cost = que.shift
	dir.each {|dx, dy, dc|
		nx, ny = x + dx, y + dy
		next if nx < 0 or nx >= H or ny < 0 or ny >= W or c[nx][ny] == "#"
		nc = cost + dc + (c[nx][ny] == "@" ? P : 0)
		if d[nx][ny] > nc then
			d[nx][ny] = nc
			que << [nx, ny, nc]
		end
	}
end

puts d[xt][yt] <= K ? "Yes" : "No"