// I stand with PALESTINE
//#pragma GCC optimize("Ofast,O3")
//#pragma GCC target("avx,avx2")
#include "bits/stdc++.h"
using namespace std;
using ll = long long;
struct segtree {
vector<int> tree;
int size;
void init(int n) {
size = 1;
while (size < n) size *= 2;
tree.assign(2 * size, 0);
}
void build(vector<int> &a) {
init((int) a.size());
for (int p = size; p < size + a.size(); p++) tree[p] = a[p - (int) a.size()];
for (int p = size - 1; p > 0; p--) tree[p] = max(tree[p << 1], tree[p << 1 | 1]);
}
void upd(int p, int v) {
p += size;
tree[p] = v;
for (; p > 1; p >>= 1) tree[p >> 1] = max(tree[p], tree[p ^ 1]);
}
int get_next(int i, int v, int x, int lx, int rx) {
if (rx - lx == 1) return (tree[x] >= v ? lx : -1);
int m = (lx + rx) >> 1;
if (lx >= i and tree[x << 1] >= v) return get_next(i, v, x << 1, lx, m);
return get_next(i, v, x << 1 | 1, m, rx);
}
int get_next(int i, int v) {
return get_next(i, v, 1, 0, size);
}
int get_prev(int i, int v, int x, int lx, int rx) {
if (rx - lx == 1) return (tree[x] >= v ? lx : -1);
int m = (lx + rx) >> 1;
if (m <= i and tree[x << 1 | 1] >= v) return get_prev(i, v, x << 1 | 1, m, rx);
return get_prev(i, v, x << 1, lx, m);
}
int get_prev(int i, int v) {
return get_prev(i, v, 1, 0, size);
}
int get(int p) {
return tree[p + size];
}
};
void solve() {
int n, m, r, q, p;
cin >> n >> m >> r >> q >> p;
vector<segtree> col(n), row(m);
vector<vector<int>> a(n, vector<int>(m));
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) cin >> a[i][j];
col[i].build(a[i]);
}
vector<int> copy_row(n);
for (int j = 0; j < m; j++) {
for (int i = 0; i < n; i++) copy_row[i] = a[i][j];
row[j].build(copy_row);
}
while (q--) {
char op;
cin >> op;
if (op == 'W' or op == 'E') {
int i, v;
cin >> i >> v;
i--;
int now, cnt = 0;
if (op == 'W') now = col[i].get_next(0, v);
else now = col[i].get_prev(m, v);
while (cnt < r and now != -1) {
row[now].upd(i, col[i].get(now) - 1);
col[i].upd(now, col[i].get(now) - 1);
cnt++;
if (op == 'W') now = col[i].get_next(now + 1, v);
else now = col[i].get_prev(now - 1, v);
}
} else {
int j, v;
cin >> j >> v;
j--;
int now, cnt = 0;
if (op == 'N') now = row[j].get_next(0, v);
else now = row[j].get_prev(n, v);
while (cnt < r and now != -1) {
col[now].upd(j, row[j].get(now) - 1);
row[j].upd(now, row[j].get(now) - 1);
cnt++;
if (op == 'N') now = row[j].get_next(now + 1, v);
else now = row[j].get_prev(now - 1, v);
}
}
}
int ans = 0;
for (int i = 0; i <= n - p; i++) {
for (int j = 0; j <= m - p; j++) {
int sum = 0;
for (int x = i; x < i + p; x++) {
for (int y = j; y < j + p; y++) {
sum += col[x].get(y);
}
}
ans = max(ans, sum);
}
}
cout << ans;
}
int main() {
cin.tie(0)->sync_with_stdio(false);
#ifdef sunnatov
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
int q = 1;
// cin >> q;
while (q--) {
solve();
cout << '\n';
}
}
