#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <vector>
#define LL long long
using namespace std;
vector<int> e[200100];
int cnt[200100];
int T_T,n,m,k;
int main(void)
{
    scanf("%d",&T_T);
    while (T_T--)
    {
        scanf("%d%d%d",&n,&m,&k);
        for (int i=1;i<=n+m;i++) e[i].clear();
        for (int i=1;i<=n+m;i++) cnt[i] = 0;
        for (int i=0;i<k;i++)
        {
            int u,v;
            scanf("%d%d",&u,&v);
            e[u].push_back(v+n);
            cnt[u]++;
            e[v+n].push_back(u);
            cnt[v+n]++;
        }
        LL ans = 0;
        for (int i=1;i<=n;i++)
        {
            int sz = e[i].size();
            for (int j=0;j<sz;j++)
            {
                ans += (LL)(cnt[i]-1)*(cnt[e[i][j]]-1);
            }
        }
        printf("%I64d\n",ans*2);
    }
    return 0;
}