/* ***********************************************
Author: SnowyJune
Created Time :2017年02月25日 星期六 19时13分41秒
File Name :B.cpp
************************************************ */

#include <cstdio>
#include <cstring>
#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <set>
#include <map>
#include <string>
#include <cmath>
#include <cstdlib>
#include <ctime>
#define lson(x) (x<<1)
#define rson(x) ((x<<1)|1) 
#define ms(a,x) memset(a,x,sizeof(a))
typedef long long LL;
#define pi pair < int ,int >
#define MP make_pair

using namespace std;
const double eps = 1E-8;
const int dx4[4]={1,0,0,-1};
const int dy4[4]={0,-1,1,0};
const int INF = 0x3f3f3f3f;
const LL LINF = 0x3f3f3f3f3f3f3f3f;
const int maxn = 2e5+10;
LL deg[maxn], u[maxn], v[maxn];
int n,m,k;
void init(){
    int tmpx,tmpy;
    scanf("%d%d%d",&n,&m,&k);
    if(n > 1000)memset(deg,0,sizeof(deg));
    else memset(deg,0,sizeof(LL) * 2005);
    for(int i = 1; i <= k; i++){
        scanf("%d%d",&tmpx,&tmpy);
        tmpy += n;
        deg[tmpx] ++, deg[tmpy]++;
        u[i] = tmpx, v[i] = tmpy;
    }
}
LL calc(){
    LL res = 0;
    for(int i = 1; i <= k; i++){
        res += (deg[u[i]]-1) * (deg[v[i]]-1);
    }
    return (res << 1);
}
int main(){
#ifdef SNOWYJUNE 
    freopen("input","r",stdin);
#endif
    int T;
    scanf("%d",&T);
    while(T--){
        init();
        printf("%I64d\n",calc());
    }
#ifdef SNOWYJUNE
    fclose(stdin);
#endif
    return 0;
}