#include <stdio.h>
#include <map>
#include <string>
#include <iostream>
#include <set>
#include <string.h>
using namespace std;
int s1[100005],s2[100005];
struct E
{
    int u,v;
}e[100005];
int main()
{
    int t,n,m,u,v,k;
    scanf("%d",&t);
    while(t--)
    {
        scanf("%d%d%d",&n,&m,&k);
        memset(s1,0,sizeof(s1));
        memset(s2,0,sizeof(s2));
        int cnt1=0,cnt2=0;
        for(int i=0;i<k;i++)
        {
            scanf("%d%d",&u,&v);
                s1[u]++;
                s2[v]++;
                e[i].u = u;
                e[i].v = v;
        }
        long long ans = 0;
        for(int i=0;i<k;i++)
        {
            ans+=(long long)(s1[e[i].u]-1)*(s2[e[i].v]-1);
        }
        printf("%I64d\n",ans*2LL);
    }
}