#include <map>
#include <ctime>
#include <bitset>
#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <algorithm>
#include <iostream>
typedef std::bitset<32> B32;
typedef unsigned int TYPE;
inline int input() {
    static int c,t;static int k;k=0;t=1;
    do c=getchar(); while((c<'0'||c>'9')&&c!='-');
    if(c=='-')c=getchar(),t=-1;
    do k=k*10+c-'0',c=getchar(); while(c>='0'&&c<='9');
    return k*t;
}
const int MAXN=200010;
int cal[MAXN],a[MAXN],b[MAXN];
int main() {
    int T=input();
    while(T-->0) {
        memset(cal,0,sizeof(cal));
        int N=input(),M=input(),K=input();
        for(int i=1;i<=K;++i) {
            a[i]=input();
            b[i]=input();
            ++cal[a[i]];
            ++cal[b[i]+N];
        }
        long long ans=0;
        for(int i=1;i<=K;++i) {
            ans+=1ll*(cal[a[i]]-1)*(cal[b[i]+N]-1);
        }std::cout<<(ans<<1)<<std::endl;
    }
    return 0;
}