#include <bits/stdc++.h>
using namespace std;
#define int int64_t
void solve() {
int N, M, K;
cin >> N >> M >> K;
map<int, map<int, int>> A;
int ans = 0;
int dx[] = {1, 0, -1, 0};
int dy[] = {0, 1, 0, -1};
while(K--) {
int x, y;
cin >> x >> y;
for(int i = 0; i < 4; i++) {
int nx = x + dx[i];
int ny = y + dy[i];
ans += A[nx][ny] ? -1 : 1;
}
A[x][y] = 1;
}
cout << ans << endl;
}
signed main() {
//freopen("input.txt", "r", stdin);
ios::sync_with_stdio(0);
cin.tie(0);
int t;
cin >> t;
while(t--) {
solve();
}
}
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