#include <bits/stdc++.h>
using namespace std;

using vertex = tuple<int64_t, int, int>;

constexpr int64_t inf = 1e18;
vector<int> dx{-1, 1, 0, 0}, dy{0, 0, 1, -1}, cost(4);

int main()
{
    int h, w;
    cin >> h >> w;
    for (int i = 0; i < 4; i++)
    {
        cin >> cost.at(i);
    }
    int64_t k, p;
    cin >> k >> p;
    int sx, sy, tx, ty;
    cin >> sx >> sy >> tx >> ty;
    sx--;
    sy--;
    tx--;
    ty--;
    vector<string> c(h);
    for (auto &&s : c)
    {
        cin >> s;
    }
    vector total(h, vector<int64_t>(w, inf));
    priority_queue<vertex, vector<vertex>, greater<vertex>> q;
    q.emplace(0, sx, sy);
    while (not q.empty())
    {
        auto [d0, x, y] = q.top();
        q.pop();
        if (d0 >= total.at(x).at(y))
        {
            continue;
        }
        total.at(x).at(y) = d0;
        for (int i = 0; i < 4; i++)
        {
            int x_next = x + dx.at(i), y_next = y + dy.at(i), d_next = d0 + cost.at(i);
            if (x_next < 0 or h <= x_next or y_next < 0 or w <= y_next)
            {
                continue;
            }
            if (c.at(x_next).at(y_next) == '#')
            {
                continue;
            }
            if (c.at(x_next).at(y_next) == '@')
            {
                d_next += p;
            }
            if (d_next >= total.at(x_next).at(y_next))
            {
                continue;
            }
            q.emplace(d_next, x_next, y_next);
        }
    }
    if (total.at(tx).at(ty) <= k)
    {
        puts("Yes");
    }
    else
    {
        puts("No");
    }
    return 0;
}