#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int mx = 1005;
int val[mx][mx];
int sid[mx][mx];
bool g_vis[mx*mx];
int n, m;
int dx1[4] = {1, 1, 1, 0};
int dy1[4] = {1, 0, -1, 1};
int dx2[4] = {2, 0};
int dy2[4] = {0, 2};
int dx3[4] = {1, -1, 0, 0};
int dy3[4] = {0, 0, 1, -1};
int dx4[5] = {0, 1, -1, 0, 0};
int dy4[5] = {0, 0, 0, -1, 1};
vector<pair<int, int>> heavy_edges;
vector<pair<int, int>> light_edges;
int g_idx[mx*mx];
vector<int> g_vec[mx*mx];
int g_best[mx*mx];
int g_bad[mx*mx];
void add_light(int a, int b) {
if(g_vec[g_idx[a]].size() > g_vec[g_idx[b]].size()) swap(a, b);
g_best[g_idx[b]] = min(g_best[g_idx[b]], g_best[g_idx[a]]);
g_bad[g_idx[b]] += g_bad[g_idx[a]];
vector<int> & a_vec = g_vec[a];
for(int i : a_vec) {
g_idx[i] = g_idx[b];
g_vec[g_idx[b]].push_back(i);
}
g_bad[g_idx[b]]++;
}
void add_heavy(int a, int b) {
add_light(a, b);
g_bad[g_idx[b]]++;
}
main() {
cin >> n >> m;
for(int i = 0; i < n; i++) {
for(int j = 0; j < m; j++) {
cin >> val[i][j];
}
}
int cnt_spec;
cin >> cnt_spec;
vector<pair<int, int>> spec(cnt_spec + 1);
for(int i = 1; i <= cnt_spec; i++) {
int x, y; cin >> x >> y;
spec[i] = {x, y};
sid[x][y] = i;
}
for(int i = 1; i <= cnt_spec; i++) {
auto [x, y] = spec[i];
for(int dir = 0; dir < 4; dir++) {
int nx = x + dx1[dir];
int ny = y + dy1[dir];
if(nx < 0 || ny < 0 || nx >= n || ny >= m) continue;
if(!sid[nx][ny]) continue;
heavy_edges.push_back({i, sid[nx][ny]});
}
for(int dir = 0; dir < 2; dir++) {
int nx = x + dx2[dir];
int ny = y + dy2[dir];
if(nx < 0 || ny < 0 || nx >= n || ny >= m) continue;
if(!sid[nx][ny]) continue;
light_edges.push_back({i, sid[nx][ny]});
}
}
for(int i = 0; i <= cnt_spec; i++) {
g_idx[i] = i;
g_vec[i] = {i};
g_best[i] = 1e9;
g_bad[i] = 0;
auto [x, y] = spec[i];
for(int dir = 0; dir < 4; dir++) {
int nx = x + dx1[dir];
int ny = y + dy1[dir];
if(nx < 0 || ny < 0 || nx >= n || ny >= m) {
g_bad[i]++;
} else g_best[i] = min(g_best[i], val[nx][ny]);
}
}
for(auto [a, b] : light_edges) add_light(a, b);
for(auto [a, b] : heavy_edges) add_heavy(a, b);
ll rem = 0;
for(int i = 1; i <= cnt_spec; i++) {
int id = g_idx[i];
if(g_vis[id]) continue;
if(g_bad[id] > g_vec[id].size()) {
cout << "No" << endl;
return 0;
}
if(g_bad[id] == g_vec[id].size()) continue;
rem += g_best[id];
}
ll ans = 0;
for(int i = 0; i < n; i++) for(int j = 0; j < m; j++) {
bool cond = false;
for(int dir = 0; dir < 5; dir++) {
int nx = i + dx4[dir];
int ny = j + dy4[dir];
if(nx < 0 || ny < 0 || nx >= n || ny >= m) continue;
if(sid[nx][ny]) cond = true;
}
if(cond) ans += val[i][j];
}
ans -= rem;
cout << ans << endl;
}
