#include <bits/stdc++.h>
using namespace std;

bool Memory_begin;

/**/

bool Memory_end;

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    cerr << (&Memory_end - &Memory_begin) / 1048576.0 << "MB" << '\n';

    int t;
    cin >> t;
    while (t--)
    {
        int n, R, r;
        cin >> n >> R >> r;
        vector<int> a(n + 1);
        for (int i = 1, x, y; i <= n; i++)
        {
            cin >> x >> y;
            a[i] = x * x + y * y;
        }
        vector<int> ans;
        if (r * 2 <= R)
        {
            int mx = R - r * 2;
            mx *= mx;
            for (int i = 1; i <= n; i++)
                if (a[i] <= mx)
                    ans.push_back(i);
        }
        else
        {
            int mx = r * 2 - R;
            mx *= mx;
            for (int i = 1; i <= n; i++)
                if (a[i] <= mx)
                    ans.push_back(i);
        }
        if (ans.empty())
        {
            int mi = *min_element(a.begin() + 1, a.end());
            for (int i = 1; i <= n; i++)
                if (a[i] == mi)
                    ans.push_back(i);
        }
        cout << ans.size() << '\n';
        for (int i = 0; i < ans.size(); i++)
            cout << ans[i] << " \n"[i + 1 == ans.size()];
    }
}