#include<iostream>
#include<cstring>
#include<vector>
using namespace std;
using LL = long long;

int main(){

#ifdef LOCAL
    freopen("data.in", "r", stdin);
    freopen("data.out", "w", stdout);
#endif

    cin.tie(0);
    cout.tie(0);
    ios::sync_with_stdio(0);

    int T;
    cin >> T;
    while(T--){
        int n, R, r;
        cin >> n >> R >> r;
        LL t = (R - r) * (R - r);
        LL mn = 1e18;
        vector<int> ans;
        for(int i = 0; i < n; i++){
            LL x, y;
            cin >> x >> y;
            LL d2 = x * x + y * y;
            if (d2 <= t){
                d2 = -1;
            }
            if (d2 < mn){
                ans = {i + 1};
                mn = d2;
            }
            else if (d2 == mn){
                ans.push_back(i + 1);
            }
        }
        cout << ans.size() << '\n';
        for(int i = 0; i < ans.size(); i++){
            cout << ans[i] << " \n"[i + 1 == ans.size()];
        }
    }

}