#include<stdio.h>
#include<string.h>
#include<vector>
using namespace std;
#define ll __int64
ll degree[250000];
vector<ll >mp[250000];
int main()
{
    ll t;
    scanf("%I64d",&t);
    while(t--)
    {
        ll n,m,k;
        memset(degree,0,sizeof(degree));
        scanf("%I64d%I64d%I64d",&n,&m,&k);
        for(ll i=1;i<=n+m;i++)mp[i].clear();
        for(ll i=0;i<k;i++)
        {
            ll x,y;
            scanf("%I64d%I64d",&x,&y);
            y+=n;
            mp[x].push_back(y);
            mp[y].push_back(x);
            degree[x]++;
            degree[y]++;
        }
        ll output=0;
        for(ll i=1;i<=n+m;i++)
        {
            for(ll j=0;j<mp[i].size();j++)
            {
                ll v=mp[i][j];
                output+=(degree[v]-1)*(degree[i]-1);
            }
        }
        printf("%I64d\n",output);
    }
}