#include <iostream>
#include <fstream>
#include <stdio.h>
#include <cmath>
#include <queue>
#include <iomanip>
#include <algorithm>
#include <vector>
#include <set>
#include <stack>
#include <map>
#include <deque>
#include <cstring>

#define f first
#define s second
#define ll long long
#define pb push_back
#define all(x) x.begin(),x.end()
#define mp make_pair
#define y0 wefkljekfjwek
#define y1 wdfefkljekfjwek
#define y2 rfwdfefkljekfjwek

using namespace std;

const int N=10004;
const long double PI=acos(-1.0);

long double n,w,v;
long double ang[N];
int x[N],t[N];
int ans=0;
vector<int> same[N];

void new_test()
{
    ans=0;
    for(int i=0;i<n;i++)
        same[t[i]].pop_back();
}

long double to_rad(int x)
{
    return 1.0*x/60*PI/180;
}

void rr(long double &a)
{
    a=floor(a*1e12+0.5)/1e12;
}

void process(vector<int> id)
{
    long double cur_vy = w/t[id[0]];
    rr(cur_vy);
    if(w>v*t[id[0]])
    {
        return;
    }


    long double mx_vx=v*cos(asin(1.0*cur_vy/v));
    rr(mx_vx);
    long double max_dif=mx_vx*t[id[0]];
    rr(max_dif);
    vector<pair<long double,long double> > segs;
    vector<long double> pts;
    for(int i=0;i<id.size();i++)
    {
        int cur=id[i];

        pair<long double,long double> seg;

        seg.f=x[cur];
        long double dx=w*tan(to_rad(abs(ang[cur])));
        rr(dx);
        if(ang[cur]<0)
            seg.s=x[cur]-dx;
        else
            seg.s=x[cur]+dx;

        rr(seg.s);
        segs.pb(seg);
        pts.pb(seg.f);
        pts.pb(seg.s);
    }

    sort(all(pts));
    sort(all(segs));

    for(int i=0;i<pts.size();i++)
        rr(pts[i]);
    for(int i=0;i<segs.size();i++)
    {
        rr(segs[i].f);
        rr(segs[i].s);
    }

    for(int i=0;i<pts.size();i++)
    {
        for(int j=i;j<pts.size();j++)
        {

            long double down=pts[i];
            long double up=pts[j];

            long double dif=abs(up-down);
            rr(dif);
            if(dif>max_dif) break;
            rr(up);
            rr(down);
            int cur=0;

            for(int j=0;j<segs.size();j++)
            {
                if(segs[j].f<=down && segs[j].s>=up)
                    cur++;
                else if(segs[j].f>=down && segs[j].s<=up)
                    cur++;

            }

            ans=max(ans,cur);

            down=pts[i];
            up=pts[j];

            rr(up);
            rr(down);
            cur=0;
            for(int j=0;j<segs.size();j++)
            {
                if(segs[j].f<=down && segs[j].s>=up)
                    cur++;
                else if(segs[j].f>=down && segs[j].s<=up)
                    cur++;

            }

            ans=max(ans,cur);
        }
    }


}

int main()
{
    ios_base::sync_with_stdio(0);
    //freopen("INPUT.txt","r",stdin);

    int T;
    cin>>T;
    while(T--)
    {
        cin>>n>>w>>v;
        for(int i=0;i<n;i++)
        {
            cin>>x[i]>>t[i]>>ang[i];
            same[t[i]].pb(i);
        }
        for(int i=0;i<N;i++)
            if(same[i].size())
                process(same[i]);
        cout<<ans<<endl;

        new_test();
    }
}