func_code_string: #include<bits/stdc++.h>   using namespace std;      #define ll long long   #define mtv(kit) cout<<#kit<<  -  <<kit<<  n ;   #define ff first   #define ss second   #define pb push_back   #define rep(i,a,b) for(ll i=a;i<b;i++)   #define pii pair<ll , ll>   #define all(x) x.begin(),x.end()   #define nl   n    #define ump unordered_map         void doit(){    ll b, g, k; cin >> b >> g >> k;    vector<pii>p(k);    vector<ll>B(b + 2), G(g + 2);    for(ll i = 0; i < k; i++){     cin >> p[i].ff;     B[p[i].ff]++;    }    for(ll i = 0; i < k; i++){     cin >> p[i].ss;     G[p[i].ss]++;    }    ll ans = 0;    for(ll i = 0; i < k ; i++){     ans += (k - i - 1) - (B[p[i].ff] + G[p[i].ss] - 2);     B[p[i].ff]--;     G[p[i].ss]--;    }    cout << ans << nl;   }      int main(){       ios_base::sync_with_stdio(false);       cin.tie(NULL);       ll t = 1;    cin >> t;       for(ll i = 1; i <= t; i++){           doit();       }   }   