/// In The Name Of God
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,sse3,sse4,popcnt,abm,mmx")
#include <bits/stdc++.h>
#define f first
#define s second
#define pb push_back
#define pp pop_back
#define mp make_pair
#define sz(x) (int)x.size()
#define sqr(x) ((x) * 1ll * (x))
#define all(x) x.begin(), x.end()
#define Kazakhstan ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define nl '\n'
#define ioi exit(0);
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
const int N = (int)5e5 + 7, inf = (int)1e9 + 7, mod = (int)1e9 + 7;
const ll linf = (ll)1e18 + 7;
const int dx[] = {-1, 0, 1, 0, 1, -1, -1, 1}, dy[] = {0, 1, 0, -1, 1, -1, 1, -1};
using namespace std;
int n, m, r, k, p;
vector < vector <int> > a;
int get(int x1, int y1) {
int res = 0;
int x2 = x1 + p - 1, y2 = y1 + p - 1;
for (int i = x1; i <= x2; i++) {
for (int j = y1; j <= y2; j++) {
res += a[i][j];
}
}
return res;
}
int main() {
#ifdef IOI2018
freopen ("in.txt", "r", stdin);
#endif
scanf ("%d%d%d%d%d", &n, &m, &r, &k, &p);
a.resize(n + 1);
for (int i = 1; i <= n; i++) {
a[i].resize(m + 1);
for (int j = 1; j <= m; j++) {
scanf ("%d", &a[i][j]);
}
}
for (int t = 1; t <= k; t++) {
char c;
int x, y;
scanf ("\n%c %d %d", &c, &x, &y);
if (c == 'N') {
for (int i = n, done = 0; i >= 1 && done < r; i--) {
if (a[i][x] >= y) a[i][x]--, done++;
}
}
else if (c == 'S') {
for (int i = 1, done = 0; i <= n && done < r; i++) {
if (a[i][x] >= y) a[i][y]--, done++;
}
}
else if (c == 'E') {
for (int i = 1, done = 0; i <= m && done < r; i++) {
if (a[x][i] >= y) a[x][i]--, done++;
}
}
else {
for (int i = m, done = 0; i >= 1 && done < r; i--) {
if (a[x][i] >= y) a[x][i]--, done++;
}
}
}
int ans = 0;
for (int i = 1; i <= n - p + 1; i++) {
for (int j = 1; j <= m - p + 1; j++) {
ans = max(ans, get(i, j));
}
}
cout << ans;
ioi
}
